八大時(shí)態(tài)如下：

　　1.一般現(xiàn)在時(shí)am is are,和動(dòng)詞的一般時(shí)態(tài),是單數(shù)第三人稱時(shí)家s&es;

　　2.一般過去式:was, were和動(dòng)詞的一般過去時(shí)態(tài),如do就是did;

　　3.現(xiàn)在進(jìn)行時(shí):即動(dòng)詞ing形式, she is leaving;

　　4.過去進(jìn)行時(shí):she was leaving,就是說A和B 說話談到過去的某個(gè)時(shí)間點(diǎn)或段正在做某事,例如上個(gè)星期天的三點(diǎn)你和我正在看電影,你跟別人講起時(shí)就可用這個(gè)時(shí)態(tài);

　　5.現(xiàn)在完成時(shí):have+done:I have finished work.沒有具體的時(shí)間,只強(qiáng)調(diào)結(jié)果是已經(jīng)做了某事,如:我已經(jīng)吃飽了I have had enough;

　　6.過去完成時(shí):had+done,如:I had finished my work when he came to the office yesterday morning.過去的過去已經(jīng)完成的動(dòng)作,就是說他來辦公室時(shí)我已經(jīng)完成了工作;

　　7.將來完成進(jìn)行時(shí):will have been doing,比如:做報(bào)告時(shí)說:到2012年6月6號(hào)9:30分00秒,神州8號(hào)正在升空這個(gè)動(dòng)作中,have been doing 強(qiáng)調(diào)一直持續(xù)的動(dòng)作,如下個(gè)月6號(hào)上午9:00她正在考試:she will have been taking exams at 9:00 am in Guangzhou on 6 June;

　　8.過去完成進(jìn)行時(shí):would have been doing:4月6號(hào)9:00她正在考試,也是強(qiáng)調(diào)持續(xù)動(dòng)作,she would have been taking exams at 9:00 on 6 April.你跟別人講起就可用這個(gè)時(shí)態(tài).