存现句是什么句型 嗯……是有一个句型：现完+since+过去式？

嗯……是有一个句型：现完+since+过去式？  

嗯……是有一个句型：现完+since+过去式？

before也有类似句型，但是主从句时态和since不同。
since为：It is + 一段时间 + since从句（一般过去时）
或：It has been + 一段时间 + since从句（一般过去时）
或：It was + 一段时间 + since从句（过去完成时）
意思是：自从...以来已经多久了。
而before为：It took/was + 一段时间/long + before从句（一般过去时）意思是：过了多久才...
否定为：It wasn't 或 didn't take + 一段时间/long + before从句（一般过去时） 意思是：没过多久就...
或者：It will be/take + 一段时间/long + before从句（一般现在时）意思是：要过多久才会...
否定为：It won't be/take + 一段时间/long + before从句（一般现在时）意思是：不用过多久就会...

there be 句型过去式

句子主语为（ 单数可数 ）名词或（ 不可数 ）名词时，动词be为was

There be句型的过去式

There be表示存在的“有”，他有各种时态，如:
一般现在时：there is/are；一般过去时：therewas/were
一般将来时：there will be；过去将来时：there would be；
现在完成时：there has/have been；过去完成时：there had been
希望能帮到你！

过去式句型结构

主语（）+谓语动词过去式+宾语（表语）
例:I came here yesterday！
He was（系动词） ten（表语） ！

一般过去式的句型

what did you do?
where did you go?
did you ……？
I did my homework just now.
I didn't do my homework last Sunday.

过去式some were…some were…others…句型

There were some children in the classroom. Some were reading books, some were playing chess, and others were listening to music. They enjoyed themselves.

用一般过去式to do句型造七个句

一般过去时表示过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为；过去主语所具备的能力和性格。基本结构：主语+谓语(动词过去式）+句子其他成分；主语+was/were+形容词/名词/介词短语+过去时间；否定形式①was/were+not;②在行为动词前加didn't，同时还原行为动词；一般疑问句Did+主语+do+其他。
例句：
1.It is very impolite of you to do so to customers.
你这样做对顾客太不客气了。
2.I need you to do something for me
我需要你为我做点儿什么。
3.I don't know what to do next
我不知道接着该干什么了。
4.This has nothing to do with you.
这与你不相干。
5.I feel this is getting to be a distraction from what I really want to do
我觉得这开始让我无法集中精神做我真正想做的事情了。
6.Now here's what I want you to do
听着，现在这是我想让你做的事。
7.That's precisely what I don't want you to do.
那恰恰是我不想让你做的。
8.What has this to do with you?
这件事与你有何相干？

一个句子只能有一个过去式吗

当然不是。你的句子还可接成：
They went to the cinema by bus and then stayed there for 2 hours with other friends 。——句中就有两个（甚至还可能有更多的）谓语动词。这还算是简单的，因为这只是有并列谓语动词的简单句。至于复杂的句子——并列句、复合句等，一个大句子中包含多个句子——有主句和几个从句，那就会出现多个谓语动词。不要急，慢慢学吧。

用There be句型的过去式写5句！

There were three pens on the desk.
There were many pigs on the farm.
There was an apple.
There was a book in the room.
There were many chairs in the classroom.

一般过去时句型用几次过去式

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