Find adv. and word it modifies

He courageously continued not only to compose but also to conduct performances.

courageously(adv)modifies continued
not (adv) modifies Only?
only(adv) modifies continued?
also (adv) modifies conduct?

... not only ... but also ...

This construction is one of several correlative conjunctions in English.
http://grammar.ccc.commnet.edu/grammar/conjunctions.htm#correlative_conjunctions
I would not consider them to be adverbs since they are primarily conjunctions.

Your choice and description of "courageously" is correct.

Thank you for that link. It was very helpful.

You're very welcome.

Yes, you have correctly identified the adverbs in the sentence and the words they modify:

1. "courageously" modifies "continued" - It tells us how he continued.
2. "not" modifies "only" - It adds a negative meaning to "only," indicating that there were other actions taken, not just composing.
3. "only" modifies "continued" - It restricts the action to "continuing," implying that he did not cease composing.
4. "also" modifies "conduct" - It indicates that performing was an additional action he took alongside composing.

By identifying the adverbs and the words they modify, we can better understand how each action is performed in the sentence.