時態概念
經常、反**生的動作或行為及現在的某種狀況。
時間狀語基本結構否定形式
①am／is／are＋not；②此時態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，則用doesn't，同時還原行為動詞。例：you are not a teacher.
i don』t h**e a dog.
shedoesn』t』work hard.①was／were＋not；②在行為動詞前加didn't，同時還原行為動詞。
例：it was not monday.
they were not didn』t h**e a 例:she is not eating now.
theyarenottalkingatthistime.
一般疑問句
把be動詞放於句首；②用助動詞do提問，如主語為第三人稱單數，則用does，同時，還原行為動詞。例：are you a teacher?
do you h**e a dog?does she work hard?①was或were放在句首；②用助動詞do的過去式did提問，同時還原行為動詞。
例：was it monday.
were they you h**e a cold.把be動詞放在句首例:is she eating now?
aretheytalkingatthistime?
把was或were放在句首例: was he swimming?
werewesingingwhentheteacher came in?
h**e／has放於句首
例: h**e you worked here forthree years?
has tom been to guilin?
一般現在時
often，usually，always，sometimes，①be動詞am, is, are；②行為動every week（day，year，month．．．），詞once a week，on sundays，etc．例：you are a teacher.
i h**e a works hard.
一般過去時
過去某個時間裡發生的動作或狀態；過去習慣性、經常性的動作、行為。
ago，yesterday，thedaybefore①be動詞過去式was或were；yesterday，last week（year，night，②行為動詞過去式month．．．），in 1989，just now，at the例：it was monday.
they were of 5，one day，long long ago，once
we had a a time，etc．
now，at this time，these days，etc．am／is／are＋doing
例:she is eating now.
they are talking at this 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。
現在進行時
表示現階段或說話時正在進行的動作及行為。
表示過去某段時間或某一時刻正在發生或進行的行為或動作。
過去發生或已經完成的動作對現在造成的影響或結果，或從過去已經開始，持續到現在的動作或狀態。
過去進行時
was／were＋doingwas／were＋not＋doing例: he was swimming.例:
he was not were not singing when theteacher came in?teacher came in.
h**e／has（第三人稱單數用
has）＋not＋done(動詞過去分詞)
例: i h**e not worked here forthree years.
tom has not been to 動詞過去分詞)
例：i/he/she/it/we/they/youhadnotlearnedtensongs by the end of last year.
現在完成時
recently，lately，since．．．，for．．．，h**e／has（第三人稱單數用in the past few years，etc．has）＋done(動詞過去分詞)例: i h**e worked here for three
years.
tom has been to guilin.
had(任何人稱都不變)＋done(動詞過去分詞)
例：i/he/ she/ it/ we/ they/youhad learned ten songs by the endof last year.
過去完成時
以過去某一時間為標準，在此before，by the end of last year（term，以前發生的動作或行為，或在month．．．），etc．過去某動作之前完成的行為，即「過去的過去」。had放於句首
例：had he/ she/ it/ we/ they/youlearnedtensongsbytheend of last year?
表示將要發生的動作或存在的狀態及打算、計畫或準備做某事。
一般將來時
tomorrow，next day（week，month，①am／is／are+goingto＋year．．．．），soon，in a few minutes，do(動詞原形)；②will／shall＋by．．．，the day after tomorrow，etc．do(動詞原形)注：第一人稱用
shall,其他人稱用will
例:heisgoingtoh**eapartytomorrow.
we shall/will clean up the schoolsoon.
they will come next month.①am／is／are＋not＋goingto＋do(動詞原形)；②will／shall＋not＋do(動詞原形)例:heisnotgoingtoh**eaparty tomorrow.
weshall/willnotcleanuptheschool soon.
theywillnotcomenextmonth.
①was／were+not＋goingto＋do(動詞原形)；②would／should＋not＋do(動詞原形)例：marysaidshewasnotgoing to visit sichuan the nextday.
mary said she would not go tosichuan the next day.
①be放於句首；②will／shall提到句首
例:ishegoingtoh**eaparty tomorrow?
willyoucleanuptheschoolsoon?
will they come next month?
過去將來時
立足於過去某一時刻，從過去the next day（morning，year．．．），the①was／were+goingto＋do(動看將來，常用於賓語從句中。following month（week．．．），etc．詞原形)；②would／should＋do(動詞原形)
例：mary said she was going tovisit sichuan the next day.
marysaidshewouldgotosichuan the next day.
①was或were放於句首；②would／should提到句首例：was mary going to visitsichuan the next day?
wouldmarygotosichuanthe next day?
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