Structural and semantic characteristics of the sentence

The sentence.

It is rather difficult to define the sentence as it is connected with many lingual and extra lingual aspects – logical, psychological and philosophical. We will just stick to one of them - according to academician G.Pocheptsov, the sentence is the central syntactic construction used as the minimal communicative unit that has its primary predication, actualises a definite structural scheme and possesses definite intonation characteristics. This definition works only in case we do not take into account the difference between the sentence and the utterance. The distinction between the sentence and the utterance is of fundamental importance because the sentence is an abstract theoretical entity defined within the theory of grammar while the utterance is the actual use of the sentence. In other words, the sentence is a unit of language while the utterance is a unit of speech.

The most essential features of the sentence as a linguistic unit are a) its structural characteristics – subject-predicate relations (primary predication), and b) its semantic characteristics – it refers to some fact in the objective reality. It is represented in the language through a conceptual reality:

We may define the proposition as the main predicative form of thought. Basic predicative meanings of the typical English sentence are expressed by the finite verb that is immediately connected with the subject of the sentence (primary predication).

To sum it up, the sentence is a syntactic level unit, it is a predicative language unit which is a lingual representation of predicative thought (proposition).

A sentence may consist of one clause (independent clause) or more clauses (independent and dependent clauses). An independent clause is also called main clause. A dependent clause is also called subordinate clause.
On the basis of numbers of clause and types of clauses present in a sentence, sentences are divided in to four kinds.