all+we+can+do
答：all we can do 是主语， is 是谓语， promise to love each other是表语 promise前省略了to（因为前面句子里有do 所以这里的to可以省略），原句应该是all we can do is to promise to love each other 意为“我们能够做的就是允诺去爱对方“we can do 是定语从句，先行词是all，省略了that ...
答：这句话是个复合从句，前面all we can do 是主语从句，这个do是从句的动词，is是主句的动词，所以这两个动词不矛盾。。希望对你有帮助~
答：你说的两个动词没包括情态动词can吧 你把all看做主语 而we can do 只是修饰all的 翻译过来就是“我们能做的事” 这句话作主语 自然看作了名词 后面用is便能说得通了
答：不能改成ing形式，那样就和now不一致了！这里的is是谓语啊，后面是宾语！all是先行词！
答：1. is是由all决定的 原句=all (we can do) is (hope for the best and wait)=all is ...2. 你用to do也可以啦，不过用原型比较省力。大家习惯了这么说 3. is后面通常不跟原型。另外动词也很少以原型出现的。一个例外是祈使句后的动词才用原型，比如圣经里面耶稣可以说let there be ligh...
答：All we can do before the test is study hard.和 All she has to do is try your best.中的to study hard和to try your best分别是前面All we can do和All she has to do的补语，所以后面的to要省去。所以变成 All we can do before the test is to study hard.All she has to do...
答：All we can do is wait for the end. Jews and Christians are waiting, the world is waiting, and many are waiting for death. 48、因为在其最深处青春比老年寂寞。 Because in the depths of its youth than the old lonely. 49、我必须咬紧牙关,让自己显得勇敢些。 I have to bite the bullet ...
答：为您解答 两句一样的 这个第二句属于谓语省略的情况，can后面省略了动词do，避免和前面同等成分的重复。
答：Can't you see we're free to die Cool vibes, all we can do is fight and pray Cool vibes, why don't you thrill me Cool vibes, why don't you kill me All that I can see are shadows of my destiny Stay close to me, infinity Enigma's what we share But I don't care...
答：不能，因为要避免重复。do 显然已在前面了，这是一个复合从句，we can 做的是all 的定语， to help the poor 做的是do的宾语，且do 是实义动词，必须跟加 to 的宾语
网友评论：
经届17223212056：
All - --we can do is to do our best to help him . -
33818宦辰
： 1. all that 这里all 为先行词,that引导的定语从句,that we can do修饰前面的all, 表示所有我们能做的是,这是比较常见的句式 all that we can do is to do sth. 2. 这个要看句子是否完整 he grew up as a child是完整句子,所以缺的是状语,需要用...
经届17223212056：
all we can do is to 为什么能用两个动词我是说 do 跟 is -
33818宦辰
：[答案] 前面是从句: all ( that)we can do ( that)we can do 是all 的定语从句. 原句即:all is to 所有的就是去. ( that)we can do 那些我们能做的,是all的定语成分.
经届17223212056：
all we can do before we have a test is study hard是什么语法 -
33818宦辰
： all that we can do before we have a test is study hard.all 是先行词,后面that we can do 是定语从句,省略了关系词 that .
经届17223212056：
all we can do is hope for the best and wait.为什么用is?不是两件事吗?hope,wait为什么用原型?is后可以加原型吗? -
33818宦辰
：[答案] 规范的表达是:All we can do is to hope for the best and (to) wait. 一般只省略第二个to,这里是省略了两个,不太规范,但在口语中可以这样说
经届17223212056：
英文语法问题 : what we can do is 后面什么时候加to do 什么时候加do -
33818宦辰
： we will do all that we can do…中that we can do是定语从句,先行词是all.在从句中,that做all的宾语而what不可引导定语从句,所以用that,我这么说懂了吗?如果不懂再问我,希望可以帮到你
经届17223212056：
1.All - --we can do is to do our best to help him .A .the thing B,that C what D which ,(怎么看,A 为什么不可以,)2..After living in Paris for 50 years ,he ... -
33818宦辰
：[答案] 1. all that 这里all 为先行词,that引导的定语从句,that we can do修饰前面的all, 表示所有我们能做的是,这是比较常见的句式 all that we can do is to do sth. 2. 这个要看句子是否完整 he grew up as a child是完整句子,所以缺的是状语,需要用where...
经届17223212056：
all that we can do is to do sth.不是缺谓语吗?that we can do 做all的定语,如果省去定语就是all is to do sth,is to do 是非谓语,请问这个句子为什么正确? -
33818宦辰
：[答案] is是系动词,与 to do sth.合起来作谓语
经届17223212056：
all we can to 很常见的说法是:We should do all we can to help those who are in trouble.为什么不是:all we can do to help..all that we can to help..all that we ... -
33818宦辰
：[答案] 首先,all that we can do to help..=what we can do to help.. 其次,这里定语从句的关系词that是作宾语的,可以省略,而动词do因为跟前面一样也可以省略,于是变成all we can to help
经届17223212056：
that is all we can do 和that is all what we can do这两句话有什么区别,请前辈执教,万分感谢 -
33818宦辰
：[答案] that is all we can do 的意思是我们就能做到那些了 that is all what we can do 的意思是我们全部能够做到的就那些 虽说翻译有少许不同,但是意义差不多的,主要是因为一个是书面的一个是口语化的,第一句是口语化的,下面的是书面化的.
经届17223212056：
we will do all we can ＂we can＂什么成分原句:we will do all we can to assist you in finding somewhere to live关联词呢?省略了吗 补充以后是什么样呢? -
33818宦辰
：[答案] 省略了 that 放在all 的后面 宾语从句that可省略
