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.