has been后面加什么词性
第1篇:hasbeen后面加什么词
has been后面加形容词。
has:有; have 的第三人称单数现在时形式。
been:
v. 曾经; 曾经到过(某地)。
are的过去分词; be的过去分词。
扩展资料
Only time will tell if the treatment has been successful.
只有时间才能证明这种疗法是否成功。
The system has been in operation for six months.
这个系统已经运行六个月了。
The company has been investing in new plant and equipment.
这家公司一直在投资购置新机器和设备。
A new system has been devised to control traffic in the city.
控制城市交通的新系统已经设计出来。
Digital television has been around for some time now.
数字电视已经面市一段时间了。
第2篇:are后面加什么词性
有以下几种形式:are+动词ing构成现在进行时态;are+动词的过去分词,构成被动语态,表被动;are+由动词ed形式或动词ing形式转化成的形容词,构成系表结构。
扩展资料
be动词后面的`动词形式有三种可能:
-ing:现在进行时,Im trying to give you the right answer.
-ed:被动语态,Im told that you dont know her.
to do:
1、表示按计划或安排要做的事。例如:They said goodbye,little knowing that they were never to meet again.他们告了别,不知道以后再也不会见面了。
2.表示“应该”,相当于should,ought to.例如:You are to report to the police.你应该报警。
3.表示“必须”,相当于must,have to.例如:The letter is to be handed to him in person.这封信必须亲手交给他。
4.表示“想,打算”,相当于intend,want.例如:If we are to be there before ten,we’ll have to go now.如果我们要在十点前到,我们现在就得走。
5.用于第一人称疑问句,表示征求对方意见。
6.用于否定句,表示“禁止”,相当于mustn’t.例如:You are not to smoke in the reading-room.你不可以在阅览室里吸烟。
7.表示“可以,可能”,相当于may,can.例如:The news is to be found in the evening paper.这条消息可以在晚报上见到。
8.were to do sth.用于if或even if / even though从句中,表示对未来的假设。
9.be to blame(该受责备,对某坏事应负责任)与be to let(待出租)两种结构中,用不定式的主动形式表示被动含义。例如:This house is to let.这房子要出租。
第3篇:such后面加什么词性
such后面加单数名词或者复数名词。
such:det./pron.这样的;(指上文)那样的;类似的;(指后文)下述一类的;(强调程度)非常;如此程度。
扩展资料
When would such a solution be possible?
什么情况下可以这么解决?
Such problems are a universal feature of old age.
这类问题是老年人的`通病。
She shouldnt have said such things in your hearing.
她不应该在你面前说这种事情。
Such decisions are normally the province of higher management.
这类决定一般属于高层管理的职责范围。
This was the best room we could get at such short notice.
这是我们临时能弄到的最好的房间了。
