1) Has my grandmother cooked a cake yet?
2) Did Sam go to the cinema last week?
3) Is she is looking at the blackboard now?
4) Do we love our country?
1) Who has already cooked a cake?
2) Who went to the cinema last week?
3) Who is looking at the blackboard now?
4) Who loves our country?
1) My grandmother hasn't cooked a cake yet.
2) Sam didn't go to the cinema last week.
3) She isn't looking at the blackboard now.
4) We don't love our country.
1) My grandmother has already cooked a cake. Present Perfect
2) Sam went to the cinema last week. Past Simple
3) She is looking at the blackboard now. Present Continuous
4) We love our country. Present Simple