Grammatical classes of words. 
Adjective. 
Types of adjectives. 
Adverb

This part of speech is characterized by combinability with verbs and adjectives as well as other adverbs being modified. Adverbs perform the functions of various adverbial modifiers: of time, or place, or manner, or other. Referring to whole situations adverbs are called situation «determinants». There are definite contexts in which adverbs join with nouns and achieve a peculiar purpose of mixed adverbial-attributive character [Bloch 2002]. This is the result of the nominalization of syntactic constructions in which the correspondent adverb functions as a regular adverbial modifier. In a sentence adverbs can fulfill the function of conjunctions, attaching the main clause or joining independent proposals as well as some adverbs play the role of subordinate allied words.

Therefore, the adjective is one of the least explored parts of speech in the English language, regarding its functional use. In view of this, we decided to fill some of the gaps here. In general, the adjective in the English language allows the division of units into three main groups depending on the functioning of the syntactic features: the adjectives that are capable of simultaneously performing of functions of attribute and predicative; unit fulfilling only attributive function; adjectives that can perform only predicate function.

Bibliography.

Блох, М.Я. (2002) Теоретические основы грамматики. М., Высшая школа.

Вейхман, Г. А. (2010) Современный английский. Новейший справочник по грамматике. М., Астрель: АСТ.

Иванова И.П., Бурлакова, В.В., Почепцова, Г. Г. (1981) Теоретическая грамматика современного английского языка. М., Высшая школа.

Rayevska, M.M. (1976) Modern English Grammar. Вища школа.

Greenbaum, S., Quirk, R., Leech, J., Svartvik, J. (2000) A Comprehensive Grammar of the English Language. Longman, New York.