He mocks at me.

I am mocked at by him

I was mocked at to him

I will be mocked at him

All Of the above

He mocks at me is a tense of present indefinite tense.

Mock + at (fixed preposition)

Mock at means مذاق اڑانا

Present Indefinite Tense

Active Voice: Subject + Verb + Object

Passive Voice: Object + is/am/are+ third form of a verb + by + subject.