Question

the necklace was not stolen by celestine. turn into active voice

Answer 1

Active voice --------------------->


Celestine did not steal the necklace.

Hope this helps you....

Answer 2

This is Past Simple (Past Indefinite) Tense case.

The active voice is written using Past Simple form the verb (V2). The passive voice is written using was/were+Past Participle (V3). Since the given sentence is a negative sentence we will use the did+not+V1 form of the verb. Hence the correct answer is given below:

Celestine did not steal the necklace.