一般现在时:主语+实义动词(主语是第三人称代词单数,实义动词用第三人称单数形式;其余人称代词无论单复数,实义动词都用原型)eg.Igotoschoolonfoot.Hegoestoschoolonfoot.Yougotoschoolonfoot.Wegotoschoolonfoot.现在进行时:主语+be(am/is/are)+动词ing形式eg.Iamgoingtoschool.Heisgoingtoschool.Youaregoingtoschool.一般将来时:主语+begoingto+动词原型主语+will+动词原型eg.IamgoingtowatchTV.IwillwatchTV.过去进行时:主语+be(was/were)+动词ing形式eg.IwaswatchingTVyesterdaynight.YouwerewatchingTVyesterdaynight.现在完成时:主语+have/has+过去分词eg.Ihavedonemyhomework.Hehasdonehishomework.过去完成时:主语+had+过去分词eg.Ihaddonemyhomework.Hehaddonehishomework.情态动词:情态代词(如must,may,might,can,could,will,would,should等)+动词原形一般过去时:主语+动词过去式eg.Ididmyhomework.