Now let's review and practice a bit.
Remember that we use must we express obligation duty or or habituation to emphasize the necessity of
something and to express certainty in something being true.
Now read the following sentences and fill in the blanks using the appropriate model verb you gossip
about your co-workers
you mustn't gossip about your co-workers Kate go to the doctor she looks ill
Kate must go to the doctor she looks ill John didn't call me last night he have been busy
John didn't call me last night he must have been busy
also remember the reuse made to ask for permission and we used me or might to express possibility now
with the following sentences and fill in the blanks using the appropriate model verb I open the curtains
it's quite dark here
May I open the curtains.
It's quite dark here we go to China for our honeymoon we are still thinking about it
we might go to China for our honeymoon we are still thinking about it.