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过去进行时的谓语动词

was/were +谓语动词的现在分词形式(就是常说的动词的ing形式) eg: He was sleeping when I got back.

对如He was doing his homework at eight last night.

过去进行时:was / were + doing sth.

1 要,即:I was having dinner when Tom called me from UK yesterday evening.2、They ( have been )to America three times他们到过美国三次了.祝你假期愉快!加油!不明白再问!

在这里动词ing结构是进行时态下动词的变更,不能称之为非谓语动词.

when whileat that timeat that moment

一般现在时 do eg:He plays the computer games every day.一般过去时 dideg:I lost my bike last Sunday.一般将来时 will do/ be+doing/ be going to doeg; I will visit my uncle in

你好!while+延续性动词,when+延续或非延续性动词都可以例句:When I was having breadfast, someone knocked at the door. When I was leaving my room, the postman arrived. While I was doing my homework, my mum came back.OK?希望能帮到你啊!我的回答你还满意吗~~

过去式是英语语法的一种,表示过去某个时间里发生的动作或状态.一般过去式的动词通常用动词的过去式形式来表示,而动词的过去式是在动词原形的基础上变化的.动词

过去进行时 1.概念:表示过去某段时间或某一时刻正在发生或进行的行为或动作. 2.时间状语:at this time yesterday, at that time或以when引导的谓语动词是一般过去时的时间状语等. 3.基本结构:was/were+doing 4.否定形式:was/were + not + doing. 5.一般

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