what is the adverb clause in the sentence: Dad takes Ryan to the zoo every Wednesday, unless it is raining
Adverbs tell when or where (or answer some other question) about the very, usually.
A clause has a subject and verb in it, apart from the main subject and verb of the sentence.
A phrase has no subject/verb construction.
Dad - main subject
takes - main verb
Ryan - direct object
to the zoo - adverbial ____
every Wednesday, - adverbial ____
unless it is raining - adverbial ____
Which of those adverbial somethings is a clause?