1I have to cook dinner after work
I don't have to cook dinner after work/
Do I have to cook dinner after work?
2 She must go to the University now
She mustn't go to the University now
Must she go to the University now
?
3 I won t be able to tell him the truth - Это и так уже отрицательное предложение, поэтому делаю утвердительное и вопросительное
I will be able to tell him the truth
Will I be able to tell him the truth?
4 He was to come at 6 yesterday/
He wasn't to come at 6 yesterday/
Was he to come at 6 yesterday?