Question

who can solve this problem ? passive voice​

Answer 1

The sentence can be changed into passive voice as follows:

This problem can be solved by whom?

Rules of converting an active voice sentence to a passive voice sentence

• The subject of an active voice sentence becomes the object of the passive voice sentence.
• The verb 'to be' is used in the same form of tense as in the active voice sentence.
• However, while changing a sentence to passive voice, the main verb is changed into the past participle.
• The object of the active voice sentence becomes the subject of the passive voice sentence.