By Question marks, Modals

1. Why using this modal: will; why not You might have ... ? 2. Why is there a question mark at the end; why is it not a full stop? 3. Why using present perfect continuous? why not You should be doing or should do ... . 4. What tense is it? 1. You would have to ask the person who...

Hi, 1. You will not have heard of me before but I used to live next door to your sister.2. That is absurd; they really could not have taken your motorbike by mistake, surely?3. You are a bit overweight; you should have been doing more regular exercise.4. You were to have been...

1. You will not have heard of me before but I used to live next door to your sister. 2. That is absurd; they really could not have taken your motorbike by mistake, surely? 3. You are a bit overweight; you should have been doing more regular exercise. 4. You were to have been...