Chaque', 'plusieurs', 'quelque' and 'tout' are examples of invariable indefinite adjectives. Adverbs in French Adverbs describe or modify verbs and adjectives, giving more information about where ...

Adverbs are words that modify verbs, adjectives or other adverbs. ‘Farmer Frank drives carefully.’ ‘Carefully’ is an adverb describing ‘drives’. It tells us how Farmer Frank drives.