12 slides
I'm sure he has given up smoking. HAVE
He must give up smoking
He must have given up smoking.
He must have give up smoking.
I'm sure he isn't feeling sick now. BE
He can't feel sick now.
He can't be feeling sick now.
He mustn't be feeling sick now.
I'm sure she called the police. HAVE
She must call the police.
She must have called the police.
She must have to call the police.
I'm sure he hadn't prepared his speech. HAVE
He couldn't have prepared his speech.
He can't prepare his speech.
He can't had prepared his speech.
I'm certain it has stopped snowing now. HAVE
It must has stopped snowing now.
It must have stopped snowing now.
It must stop snowing now.