動詞的各種形式的構(gòu)成規(guī)則-在線瀏覽
2024-09-13 01:25本頁面
【正文】 行時、完成時和完成進行時下面就英語中常見的十種基本時態(tài)進行闡述，其它的時態(tài)都是在這十種時態(tài)的基礎(chǔ)上結(jié)合而成的。：always,usually,often,sometimes,every week(day,year,month…),once a week, on Sundays,：動詞原形/第三人稱單數(shù)形式（如主語為第三人稱單數(shù)，動詞上要改為第三人稱單數(shù)形式）：am/is/are+not。t,如主語為第三人稱單數(shù)，則用doesn39。：把be動詞放于句首；用助動詞do提問，如主語為第三人稱單數(shù)，則用does，同時，還原行為動詞。：ago,yesterday,the day before yesterday,last week,last(year,night,month…),in1989,just now,attheageof5,one day,long long ago,once upon a time,etc.：be動詞；行為動詞的過去式：was/were+not。t，同時還原行為動詞。：She often came to help us in those days.I didn39。：now,at this time,look,listen：be+doing：be+not+doing.：把be動詞放于句首。：at this time, yesterday,at that time或以when引導(dǎo)的謂語動詞是一般過去時的時間狀語等。(第一個字母大寫）：At that time she was working in a factory.When he came in,I was reading a newspaper.時態(tài)五、現(xiàn)在完成時：過去發(fā)生或已經(jīng)完成的動作對現(xiàn)在造成的影響或結(jié)果，或從過去已經(jīng)開始，持續(xù)到現(xiàn)在的動作或狀態(tài)。：I39。：tomorrow,next day(week,month,year…),soon,in a few minutes,by…,the day afte
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