Adjectives, Adverbs, Prepositions and Conjunctions

Adjectives and Forms of Comparison

An adjective is a part of speech that modifies or describes a noun or a pronoun. In a sentence, an adjective answers questions such as 'which one,' 'what kind,' 'how many,' or 'how much.' Its placement within a clause can vary depending on its grammatical role. An attributive adjective typically precedes the noun it modifies, directly introducing the quality of that noun. In contrast, a predicative adjective follows a linking verb and modifies the subject of the clause.

Specific categories of words also serve modifying roles for nouns. The articles 'a,' 'an,' and 'the' are determiners, traditionally classified as limiting adjectives. The indefinite article 'a' is used before consonant sounds, while 'an' is used before vowel sounds. Demonstratives provide another specific type of modification: the words 'this,' 'that,' 'these,' and 'those' function as demonstrative determiners, traditionally called demonstrative adjectives, when they modify a noun.

Adjectives change form when making comparisons. The comparative form of an adjective expresses a greater or lesser degree of a quality, often by comparing two people, things, or groups. The superlative form of an adjective is used to compare three or more people, places, or things. Most one-syllable adjectives form the comparative by adding '-er' and the superlative by adding '-est.' Two-syllable adjectives ending in '-y' typically change the '-y' to '-i' and add '-er' or '-est.' For longer modifiers, most adjectives with three or more syllables form the comparative with 'more' or 'less' and the superlative with 'most' or 'least.'

Some adjectives follow irregular patterns, while others describe absolute conditions. The adjective 'good' has the irregular comparative form 'better' and the superlative form 'best.' Conversely, the adjective 'bad' has the irregular comparative form 'worse' and the superlative form 'worst.' Using 'more' or 'most' together with an '-er' or '-est' suffix creates an incorrect double comparative or double superlative. Additionally, adjectives such as 'unique,' 'perfect,' and 'fatal' are generally treated as non-gradable in their absolute senses, though some can be compared when used in a qualified sense.