We looked for them,but we could not find them all.为什么用find?新概念一册第117课：1、We looked for them,but we could not find them all.为什么用can的过去式,而又为什么用find?能不能说成but we can't found them all.以下

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We looked for them,but we could not find them all.为什么用find?新概念一册第117课：1、We looked for them,but we could not find them all.为什么用can的过去式,而又为什么用find?能不能说成but we can't found them all.以下
We looked for them,but we could not find them all.为什么用find?
新概念一册第117课：
1、We looked for them,but we could not find them all.为什么用can的过去式,而又为什么用find?能不能说成but we can't found them all.
以下这句为什么用found?
2、He looked for his pen everywhere in the room,but he hasn't found it yet.
谁能说下这两句的曲别在哪,第一句作者想要强调什么,为什么用could和find,第二句作者又是想要强调什么,为什么用found?
第一句到底是什么句型？

We looked for them,but we could not find them all.为什么用find?新概念一册第117课：1、We looked for them,but we could not find them all.为什么用can的过去式,而又为什么用find?能不能说成but we can't found them all.以下
can/cannot+动词原形
你看,found不是动词原形
第一句是过去式,can的句型就是上面所说的
第二句是现在完成时的形式
has/have+过去分词表示做过的事对现今所产生的影响
found是一个过去分词
不懂来问我

1.因为前面用了looked是过去时后面也应该用过去时could 这里COULD是一个情态动词 后面直接加动词原形 find.
2.第一句意思：我们找他们，但是我们终究没有找到。
第二句意思：他在他房间里到处都找过了，但是还没有找到他的笔。
因为已经用了YET这是使用完成时的标志，hasn't done 就是现在完成时，这里用hasn't 因为前面HE 是三单！...

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1.因为前面用了looked是过去时后面也应该用过去时could 这里COULD是一个情态动词 后面直接加动词原形 find.
2.第一句意思：我们找他们，但是我们终究没有找到。
第二句意思：他在他房间里到处都找过了，但是还没有找到他的笔。
因为已经用了YET这是使用完成时的标志，hasn't done 就是现在完成时，这里用hasn't 因为前面HE 是三单！

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第一句是转折句，时态前后一致，所以用could,而could后面用原型的find,不能说成but we can't found them all
第二句是现在完成时，has done,这里用find的过去分词found

1.因为此句话是过去式，你看前面的looked, 就是过去式。而could后面是要跟动词原形的，因此用find
2.第一句话用的是过去式，强调的是结果，而第二句话是现在完成时，是从过去某个时间一直持续到现在的动作，强调的是对现在造成的影响。

We began going _ the mountain.A.looked at B.looked after C.looked for D.looked around 最好写上意思 We looked for them,but we could not find them all.为什么用find?新概念一册第117课：1、We looked for them,but we could not find them all.为什么用can的过去式,而又为什么用find?能不能说成but we can't found them all.以下 We looked for you everywhere.和We have looked for you everywhere.有什么区别? 新概念英语第一册 117 0 - 离问题结束还有 14 天 18 小时 1课文 We looked for them,but we could not find them all.我们虽然找了,但没有把它们全部找到.我写的we had looked for ,but couldn't find them all.不是说在过 新概念英语第一册 117 1课文 We looked for them,but we could not find them all.我们虽然找了,但没有把它们全部找到.我写的是we had found them,but can't found all of them可以吗2课文Tommy had already swallowed them!汤米 We heard them _______ about money after the concert,and they looked very angry．如题 A.quarrelling B.quarrelled C.were quarrelling D.had quarrelled we have looked for the pen everywhere.改为否定句 suddyenly a window opend and a small man______.A)looked at B)looked up C)looked out D)looked for Doctor Li____Mr,Wu very carefully this morningA.looked on B.looked afterC.looked over D.looked for we don't consider___necessary for them to move into that houseA)that B)this C)it D)them Optimist (We Are Not For Them) 歌词 We think of them _ mountains in China.A.for B.to C.as D.with we should __the old.for examble we canhelp them cross the road.A.care for .B.laugh for.C.look for.D.depend on. -What shall we do for them?--We'd better __ them with love and security.AA.afford B.offer C.support D.provide 单项选择.We served a big meal _____ them.A.with B.t单项选择.We served a big meal _____ them.A.withB.toC.inD.for looked for looked at looked downlooked for looked at looked down looked after Why,here's my pen!I____it just now,but Ididn't____it.A.looked for,found B.found,look for C.looked for,find D.found,looked for 初一英语句子填空we looked at each other in s() we never meet for ten years.