一般現(xiàn)在時(shí)　　every …, sometimes,　at …, on Sunday,

　　一般過(guò)去時(shí)　　yesterday, last week, an hour ago, the other day, in 1982, just now

　　一般將來(lái)時(shí)　　next…, tomorrow, in+時(shí)間,

　　現(xiàn)在完成時(shí)　　for, since, so far, ever, never, just, yet, till/until, up to now, in past years, always, recently

　　過(guò)去完成時(shí)　　before, by, until, when, after, once, as soon as

　　過(guò)去進(jìn)行時(shí)　　this morning, the whole morning, all day, yesterday, from nine to ten last evening… when, while

　　將來(lái)進(jìn)行時(shí)　　soon, tomorrow, this evening, on Sunday, by this time, tomorrow, in two days, tomorrow evening