Do adverbs have to describe a main verb?

The boy runs quickly.
Quickly is the adverb, but what about:

This is a non-refundable deposit unless the vehicle is grossly misinterpreted.

Would "grossly" be an adverb, even though it doesn't describe the main participle?

1 Answer
Apr 13, 2018

Not necessarily.

Explanation:

Adverb can describe a verb, true, but it can be modified another adverb or adjective.

Your question GROSSLY indicates an adjective=== misinterpreted.

Moreover, you have misunderstanding of participle and main verb.
"is grossly misinterpreted"

here- is- a main verb---at least functioning.

misinterpreted--is --an adjective here-- at least functioning.
.