Question

Do prepositions modify verbs, adjectives, and adverbs?

Answer 1

Yes - see below for examples.

Explanation:

Let's test to see if we can!

Let's modify a verb:

He ran in the wrong direction - we modified the verb "ran" to indicate the direction.

Let's modify an adjective:

She was happy when lying on the beach watching the clouds - we modified the adjective "happy" to indicate location.

Let's modify an adverb:

The cat waved it's paw irritably at the feather duster being thrust into its face. - we modified the adverb "irritably" to indicate why it was acting that way (and we also modified the verb "being thrust" to indicate where it was being thrust).

So yes, prepositions can modify verbs, adjectives, and adverbs.