这类结构主要用于对一个正在进行的动作进行推测、责备、描述等。如：
You mentioned in your letter that you might be moving abroad.
你在信中谈到你可能要移居国外。
We might be hiring more people but nothing has been decided yet.
我们或许会再多雇些人，不过现在什么都还没定下来。
They were tipped off that he might be living in Wales.
他们探得风声他可能正住在威尔士。
We will be creating 15 new posts next year.
明年我们将增设15个新职位。
I may be stating the obvious but without more money the project cannot survive.
我这话可能多余，但是不投入更多资金，项目就难以为继。
I like her, even though she can be annoying at times.
尽管她有时可能很烦人，我还是喜欢她。
He must be going soft in the head.
他一准是脑子出毛病了。
I think you must be mixing me up with someone else.
我觉得你一定是把我错当成别人了。
I must be going now.
我现在得走了。
He might still be playing basketball in the room.
他可能还在房子里打篮球。
He might be waiting for you. 他可能在等你。
You should be wearing your sunglasses. 你应当戴着你的太阳镜。
He must be joking, or else he’s mad. 他一定在说笑话，要不就是疯了。
The boy has reached an adult age and ought to be earning his own living.
这孩子已经（到了）成年，应该自食其力了。