一般将来时
主语+will/shall do eg:I will do it later.
主语+be going to doeg:I am going to give her a big surprise.
主语+be+doing（只针对go, come, leave, start, arrive,fly,return等瞬间动词）
主语+be to do/be about to do eg:I am about to leave for Beijing.
现在进行时
主语+be+doingeg:He is watching TV now.
一般现在时
主语+动词原形/动词的第三人称形式eg:She often goes shoppng on weekend.
一般过去时
主语+动词过去式eg:The boy went fishing yesterday.
现在完成时
主语+have/has done eg:She has been to the Great Wall before.