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have been done表示什么
have
being
done是什么
时态
答:
没有这种时态。有
havebeen
doing,现在完成进行时。have/
hasbeen
动词的现在分词+其他成分,
表示
现在完成时的被动语态。现在完成进行时表示动作从某一时间开始,一直持续到现在,或者刚刚终止,或者可能仍然要继续下去。在实际使用中,现在完成进行时与一般现在时、现在完成时等时态之间的差别也需要根据具体情况...
...it
has
been
since i
have
done
something"
什么
意思,详细一点,最...
答:
没这么难吧?原句意为:自从我开始做。。。以来有多少时间了?把原句改成陈述句就
是
:It
has
been
/is 时段 since sb
have
done
something.针对时段来提问,就使用了你原句中的how long 。楼上的意思,那结构应该是:It has been/is 时段 since sb did something.要注意的是:从句中使用完成时...
having
been
done
与
have
been done 的区别和用法?求大神帮助_百度知 ...
答:
having
been
done是
过去完成进行时的被动语态,
表示
过去某一时间正在发生的被动的动作:that shirt having been washed by my mom yesterday.
have
been done是过去完成时,标一件事已经被完成了:that shirt have been washed by my mom three days ago.满意请采纳 ...
be
have
been
是什么
时态?
答:
没有这个时态哦~~ 你看原句 that
have
long
been
是
that引导的定语从句 和前面的
BE
动词没有关系 。所以该时态应该是 have been 现在完成进行时 其构成为:主语+助动词(have/
has
)+been+动词的现在分词+其他成分。其表达的意思有两种:1.
表示
从过去某时开始一直持续到现在的动作,并且还将持续...
could
have
had
这
是什么
时态语态啊,是什么意思?
答:
虚拟语态
have
done 是
已经完成, could 可能 could have done 可能已经完成,那么
代表
事实上并没有完成 此处用来
表示
一种对已经无法改变事情的假设。比如开学了,我作业还没有做完。我说我假如没去旅游,可能已经作业做完了。The homework could have
been
done if I
had
not gone for a travel....
请问
have
been
后面接
什么
词
答:
have
+动词的过去分词 这种形式
表示
现在完成式 当后面的动作
是
被动语态时,有:have+
been
+动词过去分词 表示被动语态的现在完成式 three students have been killed so far 解释为:到目前为止已经有3个学生被杀害了 而,three students have killed so far 本身就有语法错误,因为kill是及物动词,后面...
if引导虚拟语气三种用法,did,should
do
,were to do有
什么
区别
答:
关于to do引导虚拟语气 would
have
done
-would have
been
done be pleased to do -be pleased to be done 虚拟语气?关于虚拟语气should would could 用法及区别 不能。should用在if从句中,是
表示
与将来事实相反的事情。虚拟语气用wish和wished有
什么
区别? wish是现在希望 wished是过去希望...
has
been
believed to
have
been与is believed to have been的区别是...
答:
1. "
Has
been
believed to
have
been":这是现在完成时的被动语态,强调的是在过去某个不确定的时间点发生的动作对现在产生的影响或结果。例如:"He
has
been believed to have been the best player in the team."(他一直被认为是队里最好的球员。)2. "Is believed to have been":这是...
should
have
done
could have done;might have done 有
什么
区别
答:
should
have
done
:本应该做而没做某事,强调“本来应该”;could have done:本可以做却没做某事,强调“本来可以”;might have done: 可能已经作了某事,强调猜测.前两个都是假设,是与实际情况相反的假设.第三个是猜测.除此之外,should have done还明显含有懊悔或责怪之意.举例来讲:小明把家里的钥匙...
being
done
/
have
been
doing /
having
been done 的用法,区别和意思...
答:
being
done
:被动语态,意思是:正在被做(被完成)
have
been
doing:现在完成进行时,
表示
已开始,正在进行,还没结束,意思是:一直做这个做到现在
having
been done:被动语态,现在完成时,意思是:已经被完成 (好就请采纳。)
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