MODAL PERFECTS
The following is a very useful and comprehensible information about MODAL PERFECTS. Take a deep look at it and improve what we learned in class preparing for the mid-term evaluation next friday 5th August,2016. All modal perfect auxiliary verbs refer to the past. FORM : Modal + Have (Infinitive) + Past Participle 1. must have done = we are almost sure something happened in the past Jane wasn't feeling well yesterday. She must have caught a cold. Bill didn't answer the phone when I called him. He must have fallen asleep. 2. can't have done = we are almost sure something did not happen in the past She can't have forgotten to send you an invitation. I gave her your address. They can't have gone to bed late. They were very tired. 3. may / might / could have done = it is possible that something happened in the past but we aren't sure. Laura hasn't arrived yet. She may/might/could have missed the bus. I didn't see Paul at work. He may/mig