The word ‘who’ is used to ask about person.
Have a look-
Sentences in Simple Present Tense
- Who is he?
- Who is there?
- Who does it?
- Who speaks?
- Who calls me?
- Who am I?
Sentences in Simple Past Tense
- Who was she?
- Who called me?
- Who did it?
- Who prepared for exam?
- Who took the risk?
- Who was there?
Sentences in Simple Future Tense
- Who will stand?
- Who will go?
- Who will call him?
- Who will do this?
- Who will help me?
- Who will tell them?