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Syntax, Sentence Knowledge and the School-Aged Student.

Syntax

Syntactical rules are a specific system that shape the structure of sentences.

Syntactical rules indicate the word order and organisation of sentences.

The rules of sentence structure determine which word combinations are allowed, and which word combinations are not allowed.

Sentence combining

Sentences are organised dependent on their specific function.

For instance, interrogatives ask questions, such as, 'Do you want a sandwich?' whereas declaratives make a statement, 'We stand and fight here!'

Each sentence must have the basic building blocks of syntax: a noun phrase and a verb phrase.

Noun phrase: a noun phrase is a noun that is accompanied by modifiers. So for example, the noun phrase, 'the hill,' an adjective modifier may be, 'the green hill,' demonstrative, 'that hill,' possessive, 'my hill,' or prepositional, 'on the hill.'

Verb phrase: a verb phrase is a phrase that is headed by a verb. A verb phase is often accompanied by auxilary verbs. For example, 'I kicked the football' is a noun phrase without an auxiliary verb, whereas, 'I am kicking the football,' is a verb phrase with an auxiliary verb.

Even very short sentences have both a noun phrase and a verb phrase. As long as a sentence contains both it will satisfy syntactical rules.

For instance, the sentence 'Sue laughed' has both a noun and verb phrase, so is a grammatically correct sentence.

Let's contrast that simple sentence with this:

'The secret society of the filibuster league of gentlemen, on which basis only the outrageous manner of their covert and most unusual handshake is under investigation.'

The league of gentlemen...er sentence, is not a true sentence. If you read the sentence closely you will notice that it has no verb phrase.

In any noun phrase, different word classes may be added until it even takes on the form of the outrageous example above, but so long as it is accompanied by a verb phrase it will always be a true sentence. However if a piece of writing, like the example above, doesn't have a verb phrase it is not a sentence.

Sentence Types

There are four sentence types. Sentences can be categorized by the number of clauses they contain.

Simple Sentence: Contains a single main clause.

Compound Sentence: Contains two main clauses, which are linked by a coordinating conjunction.

Complex Sentence: Contains a main clause, and also one or more subordinating clauses.

Compound-Complex Sentence The most complex of all sentences. Contains more than one main clause and more than one subordinate clause.

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