The adjective. Types of adj. Degrees of comparison

31. Phrases. Types of phrases.
phrase. is a combination of syntactically connected words (Tom and Mary)
Phrases are not characterized by sentence stress or any intonation pattern, are of no communicative value.
Every lingual unit in any language has some potential ability towards combinability with other lingual units. This typical feature of the units is called valency (ВАЛЕНТНОСТЬ). The world known scholars V.Vinogradov and V.Admony classified valency into obligatory (обязат)and non-obliga­tory(неоябязат). Obligatory combinability(сочетаемость) is necessary semantically and formally and is char­acterised by strong government. For example, the verb "to be" can't be used with­out any extension:
e.g. She is a student.
So according to the character of the arrangement of the words in the phrases we can differentiate the following types of them:
I. Coordinate (the elements are syntactically equal):
e.g. tea and biscuits
Coordinate phrases consist of two or more elements which are syntactically of the same rank but we can't say that they are equal and we are able to change their position because in a lot of coordinate phrases the first comes the element with less syllables (men and women). But if you are polite you should say "My teacher and I".
There is no nucleus in coordinate phrases. These phrases may be endless but practically there can be not more than 10-15 elements in one word combination (a man of over seventy, very bald, hatchet-faced, with a grey beard...)
II. Predicative (the subject and the predicate, they are interdependent): e.g. She is sleeping.I am very sorry.
Predicative phrases include the subject and the predicate, i.e. the elements forming a complete predicative line. They are interdependent grammatically and semantically.
III. Subordinate(подчиненный)(the leading element and the rest depending on it): e.g. oral quiz awfully glad ran quickly
Classification of subordinate phrases according to the leading element (the leading element can be introduced by different parts of speech):