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■there+情态词+be
There could be no doubt about it.
对此不会有丝毫疑问。
There wont be an election in June
6月份将不进行选举。
There must be a mistake.
一定是弄错了。
■there+情态词+have been
There cant have been any doubt about it.
对此不会有过任何疑问。
There might have been a strike.
可能有过一场罢工。
There oughtnt to have been any difficulty about it
此事本不应有什么困难。
■there+情态词+be+补足语+现在分词
There cant be anyone waiting outside.
不会有人在外面等候。
There never used to be anyone living next door
过去隔壁从未住过人。
There could be something blocking the pipe
管子里可能给什么东西堵上了。
■there+情态词+have been+补足语+现在分词
There might have been someone waiting outside.
可能曾有人在外面等候。
There must have been something blocking the pipe
管子肯定曾被什么东西堵住了。
There could have been someone crossing the road.
可能曾有人横穿马路。