Modern Analysis of Sentence Structure

This page is an overview of a modern analysis of sentence structure. It presents an alternative or additional lens to the traditional analysis which is covered in the Syntax 1 video lesson.

Introduction

In the Syntax 1 video lesson we analysed and exemplified four "correct" sentence structures (simple, compound, complex, compound-complex) and three problematic sentence structures (run-on/comma splice, fragment, rambling). The analysis was based on the traditional definition of clause. Namely, that a clause is a group of words with a single subject and a single finite verb.

Modern definition of clause

It is important to note, however, that modern grammarians have extended the definition of the clause to include groups of words that contain a non-finite verb but are missing an explicit subject.

Non-finite clause examples

In the modern analysis all the bold groups of words in the following examples are classified as clauses, i.e. non-finite clauses. In each case the non-finite verb is underlined and its non-finite type is shown in brackets.

Note that in the last two sentences the non-finite clause is a gerund functioning as the subject or object of the sentence.

Embedding

As well as extending the definition of clause, modern analysis of sentence structure has introduced the concept of embedding. An embedded clause is a clause that is located within another clause, which is often the main clause. The embedded clauses in the following sentences are shown in bold.

Note: Not all grammarians agree that all the above bolded clauses should be classified as embedding.

Matrix clauses

Matrix clause is the term for a clause within which a subordinate clause is embedded. A matrix clause may be the whole sentence (or main clause) or a matrix clause may itself be a subordinate clause embedded in a superordinate matrix clause. The term for the location of clauses within clauses is nesting.

The best way to understand the concept of matrix clauses and nesting is to see some examples.

The first example is a main (independent) clause that is also a sentence:

  • Jill seems quite friendly.
  • This is not a matrix clause because it does not contain a subordinate clause. There is no nesting.

    The second example sentence is:

  • I'll tell him that you called.
  • The subordinate clause "that you called" is embedded within the sentence. So the whole sentence can be classified as matrix clause.

    In some analyses the whole sentence "I'll tell him that you called." is also classified as a main clause (see Aarts, 82). So the sentence is both a matrix clause and a main clause. In traditional grammar "I'll tell him" would be considered the main clause.

    The third example sentence is:

  • The victim told police that the man who attacked her had a beard.
  • In this case the entire sentence is a matrix clause because it contains the subordinate content clause "that the man who attacked her had a beard". But this content clause is also a matrix clause because it contains the embedded subordinate (relative clause) "who attacked her" [ Sentence source ]

    More examples of matrix clauses

    Here are more examples, some of which are repeated from above. All of the sentences are themselves matrix clauses. The clauses are delimited by square brackets.

    Note: The first (poem) example above is from Aarts in Oxford Modern English Grammar. On the Syntax 1: Lesson Notes page there is an extract from Aarts' book with an explanation and further examples of matrix clauses.

    Usefulness of the terms simple, complex and compound?

    In conjunction with this alternative analyis of sentence structure, some grammarians have argued for abandoning the terms simple, complex and compound as useful ways to classify sentences. For example, the Cambridge Grammar of the English Language (CGEL) states "...we shall not make further use of these terms". Click the button below to read its explanation for this stance.

    book cover → Below is the text in the footnote on page 45 of the Cambridge Grammar of the English Language section Sentence and clause.


    "Traditional grammar classifies the sentences in [1*] as respectively simple, complex and compound, but this scheme conflates two separate dimensions: the presence or absence of embedding, and the presence or absence of coordination. Note that in I think Jill seems quite friendly, but her husband is extremely shy there is both embedding and coordination. We can distinguish [i-ii] from [iii] as non-compound (or clausal) vs compound; [i-ii] could then be distinguished as simple vs complex clauses but no great distinction attaches to this latter distinction, and we shall not make further use of these terms."

    * The sentences in [1*] referred to in the footnote shown below.

    1. Jill seems quite friendly.
    2. I think Jill seems quite friendly.
    3. Jill seems quite friendly, but her husband is extremely shy.

    Disclaimer

    There is far from complete agreement among grammarians on how to label and how to classify the constituents of English in general and sentences in particular. So be aware that the examples above are just one way that sentence structures may be described and analysed.

    Conclusion

    Linguists and English teachers will no doubt find these discussions about terminology and classification interesting and important. English learners probably less so, however.

    What they need to know, for example, is that the previous sentence is a fragment (or non-sentence) and that there are some contexts in which fragments are acceptable and other contexts in which they are not. In other words, they need to apply their understanding of the various sentence structures to the writing of clear, coherent, grammatical and engaging texts.

    References

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