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？
人气：195 ℃ 时间：2020-01-27 13:05:18
解答
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
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