时间状语
一般现在时every …, sometimes,　at …, on Sunday,

一般过去时yesterday, last week, an hour ago, the other day, in 1982, just now

一般将来时next…, tomorrow, in+时间,

现在完成时for, since, so far, ever, never, just, yet, till/until, up to now, in past years, always, recently

过去完成时before, by, until, when, after, once, as soon as

过去进行时this morning, the whole morning, all day, yesterday, from nine to ten last evening… when, while

将来进行时soon, tomorrow, this evening, on Sunday, by this time, tomorrow, in two days, tomorrow evening