Question

nathu went back to swep the steps (change into present perfect tense)​

Answer 1

Explanation:

nathu have gone back to the steps

Answer 2

Answer:

Nathu have gone back to swep the steps.

because in present perfect tense, we use have+v³

and, we wouldn't use third form of verb in "swep" because, we use first form of verb after "to".

hope it helps:>