All adjectives can be used either attributively, predicatively, or substantively. Almost all adjectives in Irish can be used either predicatively or attributively. Adjectives and adjective phrases function in two basic ways, attributively or predicatively. The copula is present if the superlative is used predicatively. The inflected form is also used when the determiner is used predicatively. All adjectives can be used attributively, predicatively, or substantively. Quantifiers, connectives, adpositions, interjections and onomatopoeic forms cannot function predicatively.