时态定义时间状语结构一般疑问句否定句形式1、一般现在时现在发生的动作often,usually, always, sometimes, Every day/week, etc.1.主语 +be 动词 +形容词或名词例句： Nick is a pupil.2.主语 +行为动词例句： Nick studies English everyday.1.把 be 动词放于句首，其他不变。2.助动词 do 放于句首，如主语为第三人称单数用 does，同时还原为动词原形。is/are+not2.行为动词前加don’ t；若主语为第三人称单数，则用 doesn’t，同时还原动词为原形。2、一般过去时过去某个时间发生的动作yesterday, last week(month, year), just now, one day ago, long long ago, etc.1.主语 +was/were+形容词或名词例句： Nick was smart.2.主语 +行为动词过去式例句： Nick studied English yesterday.were 放于句首。2.助动词 did 放于句首，同时还原动词为原形。were+ not2.在行为动词前加didn ’t ，同时还原动词为原形。3、一般将来时表示将要发生的动作tomorrow, the day after tomorrow ，next Sunday,Soon, in a few days, etc1.主语 + be going to do例句： Nick is going to study English tomorrow.2.主语 +will ／shall＋ do例句： Nick will study English tomorrow.动词放在句首。shall 放到句首。动词 +not+going to do／ shall＋not+do4、现在进行时表示现在正在进行的动作now, at this time, these days, etc.主语 +be 动词 +doing(doing 指动词的现在分词)( 例 句 :Nick is studying English now.)把 be 动词放在句首。主语 +am/ is/ are +not +doing5、过去进行时表示过去某一时刻正在进行的动作at this time yesterday,或以 when 引导的状语从句 (谓语动词是一般过去时 )主语 +was/ were+ doing(doing 指动词的现在分词)( 例 句 ： Nick was studying English when Mom came home yesterday.)把 was 或 were 放在句首。主语+was/were+not+ doing6、将来进行时表示将来某一时刻正在进行的动作at this time tomorrow主语 +be going to/will/shall+be+doing(例句 :Nick will be studying English at this time tomorrow.)把 be/will/shall放在句首。+not+going to+be + doing／ shall＋not + be + doing7、现在完成时过去发生的但是对现在有影响的动作already, yet,...
