Was she sewing the curtains? (Make Passive Voice)

Were the curtains being sewed by her?

Are the curtains being sewed by here?

Will the curtains being sewed by here?

Was the curtains being sewed by here?

None of these

Past Continuous Tense

Active Voice Formula: Subject + was/were + v4+ object.

Passive Voice Formula: Object + was/were being + v3 + by + subject