Образуйте от данных предложений вопросительные и отрицательные 1I have to cook

1. I have to cook dinner after work. I dont have to cook dinner after work. Do I have to cook dinner after work? 2. She must go to the University now. She mustnt go to the University now. Must she go to the University now? 3. I will be able to tell him the truth. I wont be able to tell him the truth. Will I be able to tell him the truth? 4. He was to come at 6 oclock yesterday. He was not to come at 6 oclock yesterday. Was he to come at 6 oclock yesterday?