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 ...

On the other hand, non‐ essential relative clauses provide additional, non‐necessary information about the noun. Think of non‐ essential relative clauses as adjectives describing the noun; you can ...