Adverb clauses modify nouns pronouns adjectives, verbs, and adverbs subordinate clauses

I believe the answer is: verbs, adjectives and another adverb

The use of adverb clause usually made when the writers want to explain why a certain event or action happened.

For example:

- She will not talk to you, Unless you apologize to her brother

- All of things could be possible, only if we work together as a team.

Adverb clauses modify adjectives, verbs, and adverbs

An adverb clause is a group of related words that have at least a subject and a verb, which may be dependent or independent (it expresses a complete thought) and whose function is to act as an adverb, that is to say, to modify adjectives, verbs or other adverbs. This type of clauses often answers questions such as "Why?", "How?", "When?", "Where?" and "In what circumstances?".

Here are some examples (The adverb clauses are underlined):

Before going to the party, I visited my old friend Ricardo.

(When did you visit Ricardo? Before going to the party. This clause adds information about WHEN an action took place, meaning that it modifies a verb)

I have three cats because I like their company.

By the time I had arrived, they were eating the cake.

lemme see i dont think i know that one h

i don't see anything attached can you attach something?