一、一般現(xiàn)在時：
概念：經常、反復發(fā)生的動作或行為及現(xiàn)在的某種狀況.
時間狀語：always,usually,often,sometimes,every week (day,year,month…),once a week,etc.
基本結構：①be動詞；②行為動詞
否定形式：①am/is/are+not;②此時態(tài)的謂語動詞若為行為動詞,則在其前加don't,如主語為第三人稱單數(shù),則用doesn't,同時還原行為動詞.
一般疑問句：①把be動詞放于句首；②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.
二、一般過去時：
概念：過去某個時間里發(fā)生的動作或狀態(tài)；過去習慣性、經常性的動作、行為.
時間狀語：ago,yesterday,the day before yesterday,last week(year,night,month…),in 1989,just now,at the age of 5,one day,long long ago,once upon a time,etc.
基本結構：①be動詞；②行為動詞
否定形式：①was/were+not;②在行為動詞前加didn't,同時還原行為動詞.
一般疑問句：①was或were放于句首；②用助動詞do的過去式did 提問,同時還原行為動詞.
三、現(xiàn)在進行時：
概念：表示現(xiàn)階段或說話時正在進行的動作及行為.
時間狀語：now,at this time,these days,etc.
基本結構：am/is/are+doing
否定形式：am/is/are+not+doing.
一般疑問句：把be動詞放于句首.
四、過去進行時：
概念：表示過去某段時間或某一時刻正在發(fā)生或進行的行為或動作.
時間狀語：at this time yesterday,at that time或以when引導的謂語動詞是一般過去時的時間狀語等.
基本結構：was/were+doing
否定形式：was/were + not + doing.
一般疑問句：把was或were放于句首.
五、現(xiàn)在完成時：
概念：過去發(fā)生或已經完成的動作對現(xiàn)在造成的影響或結果,或從過去已經開始,持續(xù)到現(xiàn)在的動作或狀態(tài).
時間狀語：recently,lately,since…for…,in the past few years,etc.
基本結構：have/has + done
否定形式：have/has + not +done.
一般疑問句：have或has.
六、過去完成時：
概念：以過去某個時間為標準,在此以前發(fā)生的動作或行為,或在過去某動作之前完成的行為,即“過去的過去”.
時間狀語：before,by the end of last year(term,month…),etc.
基本結構：had + done.
否定形式：had + not + done.
一般疑問句：had放于句首.
七、一般將來時：
概念：表示將要發(fā)生的動作或存在的狀態(tài)及打算、計劃或準備做某事.
時間狀語：tomorrow,next day(week,month,year…),soon,in a few minutes,by…,the day after tomorrow,etc.
基本結構：①am/is/are/going to + do；②will/shall + do.
否定形式：①was/were + not; ②在行為動詞前加didn't,同時還原行為動詞.
一般疑問句：①be放于句首；②will/shall提到句首.
八、過去將來時：
概念：立足于過去某一時刻,從過去看將來,常用于賓語從句中.
時間狀語：the next day(morning,year…),the following month(week…),etc.
基本結構：①was/were/going to + do；②would/should + do.
否定形式：①was/were/not + going to + do;②would/should + not + do.
一般疑問句：①was或were放于句首；②would/shou
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