下面是小编为大家整理的if后面加什么时态(共含10篇），以供大家参考借鉴!同时，但愿您也能像本文投稿人“Dutu”一样，积极向本站投稿分享好文章。
例句：
1、She gets very upset if I exclude her from anything
要是有什么事情我不让她参加，她会非常难过。
2、He asked if I had left with you, and I said no
他问我是否和你一块儿离开的，我说不是。
3、Sometimes, that standard is quite difficult, if not impossible, to achieve
有时即便有可能达到那个标准，那也是非常困难。
4、If I could just make another small point about the weightlifters in the Olympics
请允许我就有关奥运会举重运动员的问题再补充一点。
5、I wonder if you'd be kind enough to give us some information, please?
请问您能不能给我们提供一些信息？
此外，by后加将来时间，且从句事件发生在主句事件之前，主句动词可用一般时态。
例如：Can you reply to me by tomorrow?
【释义】你能在明天之前答复我吗？
You can borrow my bicycle,but I must have it back by seven.
你可以借我的自行车，但是一定要在7点前还给我。
Research will be needed as a preliminary to taking a decision.
作出决定之前需要进行研究。
This will give a yield of 10% on your investment.
这会给你的投资带来10%的利润。
It would be preferable to employ two people, not one.
雇请两个人比雇请一个更好。
We estimated it would cost about 5 000.
我们估计要花费大约5000欧元。
No one could have foreseen things would turn out this way.
谁都没有预料到事情的结果会这样。
will be doing是一般将来进行时。will be doing的意思是正在做某事在，或一个将来特定的时间里正在做。
This summer, I will be traveling to Australia.
这个夏天我将去澳大利亚。
Will be done是被动语态的'将来时。
一般将来时的被动语态表示“……将要被……”,其常用表达形式：
will / shall + be + done.如：
The new film will be shown next Thursday.
这部新电影将在下周四上映。
例句：
The clear inference is that the universe is expanding.
显然结论是宇宙在扩大。
It is essential that your diet is varied and balanced.
重要的是你的饮食应当是多样而平衡的。
Today is Tuesday, so tomorrow is Wednesday.
今天是星期二，那么明天就是星期三。
It is a mild morning and the sun is shining.
这是一个和煦的早晨，太阳在照耀着。
Some people don't know when they're well off.
有些人身在福中不知福。
I don't know what to make of the new manager.
这位新经理，我不知道怎么评价他才好。
You don't want to do it like that.
你不应那样做。
The latest model has over 100 new features.
最新的款式有100多种新特色。
There has been a high uptake of the free training.
免费培训有很多人参加。
His quality of life has improved dramatically since the operation.
手术后他的'生活质量大大改善了。
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。
The company has a long tradition of fine design.
这家公司的优秀设计历史悠久。
例句：
It sounds like an air raid siren.
这听起来像是空袭警报。
That sounds like my sister all over.
这听起来很像我的妹妹。
It sounds like a wonderful idea to me, does it really work?
在我听来那像个好主意，但真管用吗？
It sounds like a commercial: easy on the ear but bland and forgettable.
它听起来像句广告语：顺耳却平淡易忘。
That sounds like a good idea.
那听起来像一个好主意。
He doesn't like to talk about his private life.
他不愿谈及他的私生活。
There was much discussion about the reasons for the failure.
就失败的原因进行了大量的讨论。
It was a difficult situation, when you think about it.
仔细想来，当时处境是很困难的`。
The population is increasing at about 6% per year.
人口以每年约6%的速度增加。
Talking about my problems doesn't come easy to me.
要讲关于自己的问题，对我来说并不容易。
2、by后加现在时间，用于主句是现在完成时；
例如：I have done my homework by the time you come.
【释义】你回来以前我就把我的回家作业做完了。
3、by后加将来时间，且从句事件发生在主句事件之前，主句动词可用一般时态。
例如：Can you reply to me by tomorrow?
【释义】你能在明天之前答复我吗？
You can borrow my bicycle,but I must have it back by seven.
你可以借我的`自行车，但是一定要在7点前还给我。
以上是by解释为“截至”时，后接三种常用时态的一般用法。
