These are some examples from my assignment. I'm not sure how to identify what their current word class is in these sentences. I would be grateful for any assistance.
In the following sentences some of the words have been italicized, which can all function as prepositions? What is their word class here?He walked
off.
He stepped
off the kerb.
She used
to sing.
She sat
on the table.
She ran
down the hill.
Here are my answers. Am I completely way off? If I am wrong could you tell me what I need to know to answer these questions because I'm pretty much guessing. I've been looking for explanations in grammar books but I cannot find anything that is helpful.
He walked off. (adverb)
He stepped off the kerb. (adverb)
She used to sing. (?)
She sat on the table. (preposition)
She ran down the hill. (adverb)