1、英语动词的六种主要时态
1） 一般现在时 定义：表示经常或反复发生的动作或存在的状态。
结构：谓语动词用原形或第三人称单数形式。
标志：always ,usually ,often ,every day
I often go to school on foot . He gets up at 6 every morning .
2) 现在进行时 定义：表示现在正在进行的动作或存在的状态。
结构：be（am is are）+现在分词
标志
2、now或句首有Look，Listen
He is reading an English book now. Look! They are playing football on the playground.
3) 一般将来时 定义：表示将要发生的动作或存在的状态。
结构：will+动词原形或be going to+动词原形
标志：tomorrow，next week，in three days
He will leave for Canada next Friday. It is
3、 going to rain soon.
4) 一般过去时 定义：表示过去发生的动作或存在的状态。
结构：谓语动词用过去式。
标志： yesterday, last year, just now, four months ago, in 1984
Tom came to see you just now. I began to teach English in 1984.
5) 现在完成时 定义：表示过去发生的动作对现在造成的影响或结果。
4、 结构：have/has +过去分词
标志：already, yet, so far, in the past three years, for six days（时间段），since two years ago（时间点）
I have already finished my homework. Peter has been ill for almost a month.
have gone to与have been to 的区别
6） 过去进行时 定义：表示过去某一时间正在进行的动作。
5、 结构：was/were +现在分词
标志：at that time (at)this time yesterday at 9 last night
What were you doing this time last night? I was writing a letter when you phoned.
英语动词的五种形态
1）原形 work watch stop have give
2）第三人称单数形式 works w
6、atches stops has gives
3）现在分词 working watching stopping having giving
4）过去式 worked watched stopped had gave
5）过去分词 worked watched stopped had given
不规则常用动词的过去式和过去分词
bring brought brought buy bought bought
7、 catch caught caught
do did done find found found get got got
hold held held keep kept know knew knew known
learn learnt learnt meet met met read read read
think thought thought see saw seen write wrote written
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