Переделать предложения в отрицательную форму c1. we shall watch video on sundays. c2. we shall be watching video on sundays at 16: 30. c3. we shall have watched video on sundays by 19: 00. c4. we shall have been watching video for two hours when she comes.

C1. We shall not watch video on Sundays.
c2. We shall not be watching video on Sundays at 16:30.
c3. We shall not have watched video on Sundays by 19:00.
c4. We shall not have been watching video for two hours when she comes.