It could be a)present participle b) gerund c) adjective depending on how it's used in the sentence He doesn't give up easily. He's a very persevering man
The theme of love is developed by using hyperbole.
Explanation:
We know that the author wouldn't actually walk 1000 miles to get her lover, but it proves a point. That point is that the author cares a lot about her significant other.
