составь отрицательное предложение как в примере I wanter to be a doctor. I didn"t want to be a doctor 1 I phoned to my friend yesterday. 2 we watched our favourite erformance at the theatre last Sunday 3 Ron flied the kite yesterday 4 Paul walked in the park last evening 5 Mark and Jeff played computer games yesterday 6 Sam studied his English jn Saturday evening

почему в предложениях 3,4,6 используется doesnt?

1) I didn't phone to my friend yesterday2) We didn't watch our favourite.....3) Ron doesn't fly the kite yesterday4) Paul doesn't walk in the park......5) Mark and Jeff didn't play....6) Sam doesn't study his...