Misplaced Pages

This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (October 2021) (Learn how and when to remove this message)

In linguistics, coordination is a complex syntactic structure that links together two or more elements; these elements are called conjuncts or conjoins. The presence of coordination is often signaled by the appearance of a coordinator (coordinating conjunction), e.g. and, or, but (in English). The totality of coordinator(s) and conjuncts forming an instance of coordination is called a coordinate structure. The unique properties of coordinate structures have motivated theoretical syntax to draw a broad distinction between coordination and subordination. It is also one of the many constituency tests in linguistics. Coordination is one of the most studied fields in theoretical syntax, but despite decades of intensive examination, theoretical accounts differ significantly and there is no consensus on the best analysis.

Coordinators

A coordinator or a coordinating conjunction, often appears between the conjuncts, usually at least between the penultimate and ultimate conjunct of the coordinate structure. The words and and or are by far the most frequently occurring coordinators in English. Other coordinators occur less often and have unique properties, e.g. but, as well as, then, etc. The coordinator usually serves to link the conjuncts and indicate the presence of a coordinate structure. Depending on the number of coordinators used, coordinate structures can be classified as syndetic, asyndetic, or polysyndetic.

Different types of coordinators are also categorised differently. The table below shows the categories for the coordinators in English:

Basic examples

Coordination is a very flexible mechanism of syntax. Any given lexical or phrasal category can be coordinated. The examples throughout this article employ the convention whereby the conjuncts of coordinate structures are marked using square brackets and bold script. In the following examples, the coordinate structure includes all the material that follows the left-most square bracket and precedes the right-most square bracket. The coordinator appears in normal script between the conjuncts.

and went to town. - N + N

and go well together. - NP + NP

The president will and . - V + V

The president will and . - VP + VP

Insects were , , and the bed. - P + P + P

but , there was a celebration. - PP + PP

Susan works and . - Adv + Adv

Susan works and . - AdvP + AdvP

We appreciated and . - Clause + Clause

Data of this sort could easily be expanded to include every lexical and phrasal category. An important aspect of the above data is that the conjuncts each time are constituents. In other words, the material enclosed in brackets would qualify as a constituent in both phrase structure grammars and dependency grammars.

Structure of coordination

Theoretical accounts of coordination vary in major respects. For instance, approaches to coordination in constituency and dependency differ significantly, and derivational and representational systems are also likely to disagree on many aspects of how coordination should be explained. Derivational accounts, for instance, are more likely to assume transformational mechanisms to "rectify" non-constituent conjuncts (e.g. conjunction reduction and RNR, as mentioned below).

Even concerning the hierarchical structure of coordinated strings, there is much disagreement. Whether or not coordinate structures should be analyzed in terms of the basic tree conventions employed for subordination is an issue that divides experts. Broadly speaking, there are two options: either a flat or a layered analysis. There are two possibilities for the flat option, both of which are shown here. The a-trees represent the analyses in a constituency-based system, and the b-trees in a dependency-based system:

The first two trees present the traditional exocentric analysis. The coordinate structure is deemed exocentric insofar as neither conjunct can be taken to be the sole head, but rather both conjuncts are deemed heads in a sense. The second two trees, where the coordinator is the head, are similar to the first two insofar as the conjuncts are equi-level sisters. These two flat analyses stand in contrast to the following three layered analyses. The constituency-based a-trees appear again on the left, and the dependency-based b-trees on the right:

The primary aspect of these layered analyses is that an attempt is being made to adapt the analysis of coordinate structures to the analysis of subordinate structures. The conjuncts in each case are NOT sister constituents, but rather the first conjunct is in a more prominent (higher) hierarchical position than the second conjunct. The three analyses differ with respect to the presumed head of the entire structure. The third option in terms of the X-bar schema cannot be rendered in terms of dependency because dependency allows a word to project just a single node. There is no way to capture the hierarchical distinction between specifiers and complements in a dependency-based system (but there is always a linear distinction, since specifiers precede complements).

The flat analysis has the benefit that it captures our intuition that coordinate structures are different from subordinate structures at a basic level. The drawback to the flat analysis, however, is that the theory of syntax must be augmented beyond what is necessary for standard subordinate structures. The layered analysis has the advantage that there is no need to augment the syntax with an additional principle of organization, but it has the disadvantage that it does not sufficiently accommodate our intuition that coordination is fundamentally different from subordination.

Coordination in different languages

Unique behaviour in English

Most coordinate structures are like those just produced above; the coordinated strings are alike in syntactic category. There are a number of unique traits of coordination, however, that demonstrate that what can be coordinated is not limited to the standard syntactic categories. Each of the following subsections briefly draws attention to an unexpected aspect of coordination. These aspects are less than fully understood, despite the attention that coordination has received in theoretical syntax.

Nested coordinate structures

One coordinate structure can easily be nested inside another. However, this may result in ambiguity, as demonstrated by the following example.

Fred and Bill and Sam came.

a. and and came.

b. and and ] came.

c. and ] and came.

The brackets indicate the three possible readings for the sentence. The (b)- and (c)-readings show one coordinate structure being embedded inside another. Which of the three readings is understood depends on intonation and context. The (b)-reading could be preferred in a situation where Bill and Sam arrived together, but Fred arrived separately. Similarly, the (c)-reading could be preferred in a situation where Fred and Bill arrived together, but Sam arrived separately. That the indicated groupings are indeed possible becomes evident when or is employed:

b'. or came.

c'. or came.

A theory of coordination needs to be in a position to address nesting of this sort.

Mismatch in syntactic category

The examples above illustrate that the conjuncts are often alike in syntactic category. There are, though, many instances of coordination where the coordinated strings are NOT alike, e.g.

Sarah is and . - NP + AP

Is Jim and ? - A + NP

Bill is and . - PP + VP

Sam works and . - Adv + PP

They are leaving and . - PP + Clause

Data like these have been explored in detail. They illustrate that the theory of coordination should not rely too heavily on syntactic category to explain the fact that in most instances of coordination, the coordinated strings are alike. Syntactic function is more important, that is, the coordinated strings should be alike in syntactic function. In the former three sentences here, the coordinated strings are, as complements of the copula is, predicative expressions, and in the latter two sentences, the coordinated strings are adjuncts that are alike in syntactic function (temporal adjunct + temporal adjunct, causal adjunct + causal adjunct).

Non-constituent conjuncts

The aspect of coordination that is perhaps most vexing for theories of coordination concerns non-constituent conjuncts. Coordination is, namely, not limited to coordinating just constituents, but is also capable of coordinating non-constituent strings:

and do that?

but understood the task.

Susan but to read the book on syntax.

but to solve the problem.

and submarines submerged side-by-side.

and presentation, there will be coffee.

Fred sent and .

We expect and .

While some of these coordinate structures require a non-standard intonation contour, they can all be acceptable. This situation is problematic for theories of syntax because most of the coordinated strings do not qualify as constituents. Hence since the constituent is widely assumed to be the fundamental unit of syntactic analysis, such data seem to require that the theory of coordination admit additional theoretical apparatus. Two examples of the sort of apparatus that has been posited are so-called conjunction reduction and right node raising (RNR). Conjunction reduction is an ellipsis mechanism that takes non-constituent conjuncts to be complete phrases or clauses at some deep level of syntax. These complete phrases or clauses are then reduced down to their surface appearance by the conjunction reduction mechanism. The traditional analysis of the phenomenon of right node raising assumed that in cases of non-constituent conjuncts, a shared string to the right of the conjuncts is raised out of VP in such a manner that the material in the conjuncts ends up as constituents. The plausibility of these mechanisms is NOT widely accepted as it can be argued that they are ad hoc attempts to solve a problem that plagues theories that take the constituent to be the fundamental unit of syntactic analysis.

Coordination has been widely employed as a test or for the constituent status of a given string, i.e. as a constituency test. In light of non-constituent conjuncts however, the helpfulness of coordination as a diagnostic for identifying constituents can be dubious.

Gapping or not?

Gapping (and stripping) is an ellipsis mechanism that seems to occur in coordinate structures only. It usually excludes a finite verb from the second conjunct of a coordinate structure and allows further constituents to also be elided from the conjunct. While gapping itself is widely acknowledged to involve ellipsis, which instances of coordination do and do not involve gapping is still a matter of debate. Most theories of syntax agree that gapping is involved in the following cases. A subscript and a smaller font are used to indicate the "gapped" material:

, and . - Gapping

, and . - Gapping

, and . - Gapping

Accounts of gapping and coordination disagree, however, concerning data such as the following:

a. and . - Gapping analysis

b. They saw and . - Non-gapping analysis

a. and . - Gapping analysis

b. Tanya expects and . - Non-gapping analysis

The gapping analysis shown in the a-sentences is motivated above all by the desire to avoid the non-constituent conjuncts associated with the b-sentences. No consensus has been reached about which analysis is better.

Forward versus backward sharing

Coordination is sensitive to the linear order of words, a fact that is evident with differences between forward and backward sharing. There is a limitation on material that precedes the conjuncts of a coordinate structure that does restrict the material that follows it:

*After Wallace fed and arrived. - Forward sharing fails.

*The man and a dog. - Forward sharing fails.

*After and . - Forward sharing fails.

, and of the explanation. - Backward sharing succeeds.

, and the door. - Backward sharing succeeds

Sally , and his speech. - Backward sharing succeeds

The underline now marks a constituent that mostly follows the coordinate structure. Unlike with the first three examples, the coordinate structure in these three examples can cut into the underlined constituent.

Extraction

In Transformational Grammar, the interaction of coordination and extraction (e.g. wh-fronting) has generated a lot of interest. The Coordinate Structure Constraint is the property of coordinate structures that prevents extraction of a single conjunct or from a single conjunct. Coordinate structures are said to be strong islands for extraction. For example:

*Who did you see and ? - Failed extraction of an entire conjunct

*Who did you see and Susan? - Failed extraction of an entire conjunct

*Which action did the president understand and ? - Failed extraction out of a single conjunct

These attempts at coordination fail because extraction cannot affect just one conjunct of a coordinate structure. If extraction occurs out of both conjuncts in a like fashion, however, the coordinate structure is acceptable. This trait of coordination is referred to as the Across-the-Board Constraint. For example:

What does and ? - Across-the-board extraction of What

There are other apparent exceptions to the Coordinate Structure Constraint and the Across-the-Board generalization, and their integration to existing syntactic theory has been a long-standing disciplinary desideratum.

Pseudo-coordination

In pseudo-coordinative constructions, the coordinator, generally and, appears to have a subordinating function. It occurs in many languages and is sometimes known as "hendiadys", and it is often, but not always, used to convey a pejorative or idiomatic connotation. Among the Germanic languages, pseudo-coordination occurs in English, Afrikaans, Norwegian, Danish and Swedish. Pseudo-coordination appears to be absent in Dutch and German. The pseudo-coordinative construction is limited to a few verbs. In English, these verbs are typically go, try, and sit. In other languages, typical pseudo-coordinative verbs and/or hendiadys predicates are egressive verbs (e.g. go) and verbs of body posture (e.g. sit, stand and lie down).

Why don't you go and jump in the lake

I will try and jump in the lake

The pupils sat and read their textbooks

A typical property of pseudo-coordinative constructions is that, unlike ordinary coordination, they appear to violate the Across-the-Board extraction property (see above). In other words, it is possible to extract from one of the conjuncts.

What did she go and jump into?

What did she try and jump in?

Which textbooks did the pupils sit and read?

It has been argued that pseudo-coordination is not a unitary phenomenon. Even in a single language such as English, the predicate try exhibits different pseudo-coordination properties to other predicates and other predicates such as go and sit can instantiate a number of different pseudo-coordinative construction types. On the other hand, it has been argued that at least some different types of pseudo-coordination can be analyzed using ordinary coordination as opposed to stipulating that pseudo-coordinative and is a subordinator; the differences between the various constructions derive from the level of structure that is coordinated e.g. coordination of heads, coordination of VP, etc.

Japanese

to - coordinator for nominals

In Japanese, the particle と to, which can be translated as and in English, is used as a coordinator of nominals (a noun, noun phrase or any word that functions as a noun). It cannot be used to coordinate other word categories such as adjectives and verbs. Different word categories require different coordinators. We will discuss the basic use of these coordinators in Japanese. Below is a simple example of nominal coordination in Japanese.

メアリー

Mary

Mary

-は

-wa

-TOP

banana]

banana]

-を

-o

-ACC

買った

katta

bought

メアリー -は -を 買った

Mary -wa -o katta

Mary -TOP -ACC bought

Mary bought apples and bananas.

To can also be used to coordinate two conjuncts that are not syntactic constituents. In the example below, the conjuncts each include an indirect object, a direct object, and a quantifier.

メアリー

Mary

Mary

-が

-ga

-NOM

-と

futa-tsu]-to

two-CL]-and

]

san-bon]]

three-CL]]

あげた

ageta

gave

メアリー -が {-と ] あげた

Mary -ga {-to ] ageta

Mary -NOM {-and ] gave

Mary gave two apples to Tom and three bananas to Bob.

-te - coordinator for adjectives

There are two classes of adjectives in Japanese: i-adjectives and na-adjectives. The -te suffix will change because of the classes of the adjectives.

When i-adjectives are in -te form, the final い -i is dropped and くて -kute is added as a suffix instead. On the contrary, when na-adjectives are in -te form, the final な -na is dropped and で -de is added as a suffix.

As we can see, instead of a particle, a suffix is added to the first adjective to show coordination of adjectives. Below is a simple example of adjectival coordination in Japanese. In (3), both adjectives are i-adjectives, while in (4) both adjectives are na-adjectives.

ラーメン

ramen

ramen

-は

-wa

-TOP

oishii]

tasty]

ラーメン -は

ramen -wa

ramen -TOP

Ramen is cheap and tasty.

この

kono

this

道

michi

road

-は

-wa

-TOP

kirei da]

beautiful]

この 道 -は

kono michi -wa

this road -TOP

This road is safe and beautiful.

-te - coordinator for verbs

There are three classes of verbs in Japanese: ru-verbs, u-verbs and irregular verbs. Similar to Japanese adjectives, the -te suffix will change because of the class of the verbs. The te-form of verbs is a lot more complicated than that of adjectives, for the purpose of this Misplaced Pages page, we will just discuss the coordinator how it's used in Japanese.

メアリー

Mary

Mary

-は

-wa

-TOP

nonda]

drank]

メアリー -は

Mary -wa

Mary -TOP

Mary ate and drank.

Afroasiatic: Hausa

dà/kóo - coordination for nominals and adjectives

In Hausa, dà means and in English, while kóo means or. It is used as a coordinator for nominals. Unlike Japanese, articles dà and kóo can be used to coordinate other word categories like adjectives and nominalised verbs. The number of nouns that can be conjoined to dà is unlimited. The tables below shows a simple example of simple nominal coordination in Hausa.

Àbêokùtá

Abeokuta

dà/kóo

and/or

Àbúuja

Abuja

dà

and

Ilòor̃í

Ilorin

dà/kóo

and/or

Ìbàadàn

Ibadan

Àbêokùtá dà/kóo Àbúuja dà Ilòor̃í dà/kóo Ìbàadàn

Abeokuta and/or Abuja and Ilorin and/or Ibadan

Abeokuta and/or Abuja and Ilorin and/or Ibadan

Wánnàn

This

rìigáa

dress

tánàà

3SG.F.PROG

dà

with

kálàa

colour

jáa

red

dà/kóo

and/or

kóor̃èe

green

Wánnàn rìigáa tánàà dà kálàa jáa dà/kóo kóor̃èe

This dress 3SG.F.PROG with colour red and/or green

This dress has red and green colour

Cîn

Eating

náamà-n

meat-of

àládèe

pig

dà

and

shân

drinking

gíyàa

beer

Cîn náamà-n àládèe dà shân gíyàa

Eating meat-of pig and drinking beer

Eating and drinking beer

kóo - Coordination for verbs

VP sentences are coordinated asyndetically. The table below show examples of this.

Hàbîb

Habib

yáa

3SG.M.PFV

háu

climb

Mount Patti

Mount Patti

(*dà/kóo)

and/or

yáa

3SG.M.PFV

núunàa

show

mánà

us

kòogi-n

river-GEN

Íísà

Niger

(*dà/kóo)

and/or

yáa

3SG.M.PFV

gyáarà

repair

móotà

car

-r-

-GEN-

sà

his

Hàbîb yáa háu {Mount Patti} (*dà/kóo) yáa núunàa mánà kòogi-n Íísà (*dà/kóo) yáa gyáarà móotà -r- sà

Habib 3SG.M.PFV climb {Mount Patti} and/or 3SG.M.PFV show us river-GEN Niger and/or 3SG.M.PFV repair car -GEN- his

Habib has climbed Mount Patti, has showed use the river Niger, has repaired his car

Kóo can also only appear between the first and second, or the second and third conjunct. The tables below show examples of this.

Kóo

Either

Hàbîb

Habib

yáa

3SG.F.PROG.

tàfí

travel

Lákwájà

Lokajal

kóo

or

yáa

3SG.F.PROG.

tàfí

travel

Sákkwátó

Sokoto

Kóo Hàbîb yáa tàfí Lákwájà kóo yáa tàfí Sákkwátó

Either Habib 3SG.F.PROG. travel Lokajal or 3SG.F.PROG. travel Sokoto

Either Habib went to Lokoja or he went to Sokoto

Hàbîb

Habib

yá

3SG.M.PFV.SBJV.

háu

climb

Mount Patti

Mount Patti

kóo

or

yáa

3SG.M.PFV.

núunàa

show

mánà

us

kòogi-n

river-GEN

Íísà

Niger

kóo

or

yáa

3SG.M.PFV

gyáarà

repair

móotà-r-sà

car-GEN-his

Hàbîb yá háu {Mount Patti} kóo yáa núunàa mánà kòogi-n Íísà kóo yáa gyáarà móotà-r-sà

Habib 3SG.M.PFV.SBJV. climb {Mount Patti} or 3SG.M.PFV. show us river-GEN Niger or 3SG.M.PFV repair car-GEN-his

Habib climbed Mount Patti either to show us river Niger or to repair his car.

Sinitic: Mandarin

Floating coordinators

Standard Mandarin Chinese allows floating coordinators. Essentially, these consist of coordinators in the language that cannot appear to the left of or inside the first conjunct. Instead, they may only appear between two conjuncts or inside the second. This is demonstrated in the following table in which the floating coordinator ke(shi) may occur between the two conjuncts in the first example or inside the second conjunct in the second example. However, when ke(shi) appears inside the first conjunct, as in the third example, or to the left of the first conjunct, as in the fourth example, the sentence becomes ungrammatical.

The distribution of the coordinator yu(shi), meaning and thus, bears some similarity to that of ke(shi) but restricts other coordinators from appearing before the conjunct in which it occurs. Yu(shi) may precede or follow the second conjunct but never precedes the first conjunct.

Lexical Integrity Hypothesis in Mandarin Chinese

Standard Mandarin Chinese also follows the Lexical Integrity Hypothesis, which has an effect on syntactic coordination in the language. The second example shown below (marked with an asterisk) is ungrammatical because, as correctly predicted by the hypothesis, syntactic transformations are not applicable to word-internal structures. Thus, the second example shown below is not allowed and is thus marked with an asterisk.

However, it is important to note that Verb-Object compounds are an exception to this hypothesis. This is demonstrated in the following example in which the V-O forms chi-hun and chi-su permit the coordination of the word-internal elements hun and su, thereby not following the hypothesis.

See also

• Constituent
• Dependency grammar
• Gapping
• Phrase structure grammar
• Right node raising
• Subordination

Notes

1. Concerning the distinction between subordination and coordination, see Payne (2006:309).
2. Kiss, Tibor; Alexiadou, Artemis (2015). Syntax - theory and analysis : an international handbook. Volume 1. Berlin: De Gruyter Mouton. p. 505. ISBN 9783110377408. OCLC 909907935.
3. See Williams, E. (1978) concerning the matching conjuncts of coordinate structures.
4. See for instance Dik (1968), Sag et al. (1985), Zoerner (1995), Bayer (1996), and Progovac (1998).
5. Osborne (2019: 312-317) discusses the strings that can and cannot be coordinated in terms of non-constituent conjuncts.
6. Concerning conjunction reduction, see for instance Akmajian and Heny (1980:261f.).
7. Concerning RNR, see for instance Hudson (1984:2335f.) and McCawley (1988:56).
8. Concerning the nature of the material that gapping can elide from the non-initial conjuncts of coordinate structures, see Osborne (2019: 361-365).
9. Concerning this debate, see Sag et al. (1985) and Osborne (2006).
10. The first two examples are taken from Phillips (2003). All six examples in this section appear in Osborne (2008: 1121).
11. See Ross, J. (1967).
12. See Ross (1967) and Williams (1978).
13. See Carden and Pesetsky (1977), Goldsmith (1985), Lakoff (1986), Zoerner (1995), Culicover and Jackendoff (1997), Progovac (1998).
14. See Na and Huck (1992).
15. See Wiklund (2005) and De Vos (2005).
16. See De Vos (2005) and Lakoff (1986).
17. See De Vos (2005).
18. ^ Tanimori, Masahiro (1998). Handbook of Japanese Grammar. Tuttle Publishing. ISBN 9780804819404.
19. Vermeulen, Reiko (2006). "Case and Coordination in Japanese" (PDF). Proceedings of the 25th West Coast Conference on Formal Linguistics: 417–425.
20. ^ Kiss, Tibor; Alexiadou, Artemis (2015). Syntax - theory and analysis : an international handbook. Volume 1. Berlin: DE GRUYTER MOUTON. p. 483. ISBN 9783110377408.
21. Caron, Bernard (2015). "Hausa Grammatical Sketch". LLACAN - Language, Langues et Cultures d'Afrique Noire: 23.
22. ^ Zhang, Niina Ning. (2010). Coordination in Syntax. Cambridge: Cambridge University Press. pp. 14, 15. ISBN 9780511770746. OCLC 776951353.
23. ^ C.T. James Huang, Y.H. Audrey Li, Andrew Simpson. The handbook of Chinese linguistics (First ed.). Malden, MA. p. 15. ISBN 9781118584385. OCLC 859168804.{{cite book}}: CS1 maint: multiple names: authors list (link)
24. C.T. James Huang, Y.H. Audrey Li, Andrew Simpson. The handbook of Chinese linguistics (First ed.). Malden, MA. p. 17. ISBN 9781118584385. OCLC 859168804.{{cite book}}: CS1 maint: multiple names: authors list (link)

References

• Akmajian, A. and F. Heny. 1980. An introduction to the principle of transformational syntax. Cambridge, MA: The MIT Press.
• Bayer, S. 1996. The coordination of unlike categories. Language 72, 579–616.
• Carden, G. and D. Pesetsky 1977. Double-verb constructions, markedness and a fake coordination. In Papers from the 13th regional meeting, Chicago Linguistic Society, Chicago, 82–92. University of Chicago. Reprinted in: Minoru Yasui (ed.), Kaigai Eigogaku-ronso, 1979, Tokyo: Eichosha Company.
• Culicover, P. and R. Jackendoff 1997. Semantic subordination despite syntactic coordination. Linguistic Inquiry 28, 2, 195–217.
• Dik, S. 1968. Coordination: Its implications for a theory of general linguistics. Amsterdam: North Holland Publishing Company.
• Goldsmith, J. 1985. A principled exception of the coordinate structure constraint. In W. Eilfort, P. Kroeber and K. Peterson (eds). CLS 21, Part 1: Papers from the general session at the twenty-first regional meeting, Chicago, 133–143. Chicago Linguistic Society.
• Hudson, R. 1984. Word Grammar. Oxford: Blackwell.
• Lakoff, G. 1986. Frame semantic control of the coordinate structure constraint. In A. Farley, P. Farley, and K-E. McCullough (eds), CLS 22, Part 2: Papers from the parasession on pragmatics and grammatical theory, Chicago, 152–167. Chicago Linguistic Society.
• McCawley, T. 1988. The syntactic phenomena of English, Vol. 1. Chicago: The University of Chicago Press.
• Na, Y. and G. Huck 1992. On extracting from asymmetrical structures. In D. Brentari, G. Larson and L. Macleod (eds), The joy of grammar: A festschrift in honour of James D. McCawley, 251–274. Amsterdam: John Benjamins.
• Osborne, T. 2006. Gapping vs. non-gapping coordination. Linguistische Berichte 207, 307–338.
• Osborne, T. 2019. A Dependency Grammar of English: An Introduction and Beyond. Amsterdam: John Benjamins. https://doi.org/10.1075/z.224
• Phillips, C. 2003. Linear order and constituency. Linguistic Inquiry 34, 1, 37–90.
• Payne, T. 2006. Exploring language structure: A student's guide. Cambridge, UK: Cambridge University Press.
• Progovac, L. 1998. Structure for coordination (Part 1). GLOT International 3, 7, 3–6.
• Ross, J. 1967. Constraints on variables in syntax. Ph.D. thesis. Massachusetts Institute of Technology.
• Sag, I., Gazdar, T., Wasow, T. and S. Weisler. 1985. Coordination and how to distinguish categories. Natural Language and Linguistic Theory 3, 117–171.
• De Vos, M. 2005. The syntax of pseudo-coordination in English and Afrikaans. Utrecht, the Netherlands: LOT.
• Wiklund, A-L. 2005. The syntax of tenselessness: On copying constructions in Swedish. Ph.D. Thesis. University of Umeaa.
• Williams, E. 1978. Across the board rule application. Linguistic Inquiry 9, 31–43.
• Zoerner, E. 1995. Coordination: The syntax of &P. Ph.D. thesis. University of California, Irvine.
• Postal, P. 1998. Three investigations of extraction. Cambridge MA: MIT Press.
• Schmerling, S. 1975. Asymmetric coordination and rules of conversation. In P. Cole and J. Morgan (Eds). Speech Acts, Volume 3 of Syntax and semantics, pp211–231. New York: Academic Press.

• Syntactic relationships
• Generative syntax
• Syntax