一、一般现在时：
时间状语：
always, usually, often, seldom，
sometimes, every week (day, year, month…), once a week, on Sundays，this year, I usually go to school on Sundays.
The young trees are cut by workers this year.
二、一般过去时：
时间状语：ago, just now, yesterday, the day before yesterday, last week(year, night, month…), in 1989, just now, at the age of 5, long long ago, once upon a time, the other day , in the past , that day , from then on (不到现在) etc.
三、现在进行时：
时间状语：now, at this ti me, these days, at the mo ment，at present, always
(带有感情色彩) look! liste n! etc.
四、过去进行时：
时间状语：at this time yesterday, at that time或以when引导的谓语动词是一般过去时的时间状语等。while引导的从句。
五、现在完成时：
时间状语：recently, lately, since…for…,in the last/past few years, up to now, till now, so far,
(once,twice…many times) never, already, yet,
ever, just,before etc.
六、过去完成时：
时间状语：before, by the end of last year(term, month…),etc.
七、一般将来时：
时间状语：tomorrow, next day(week, month, year…),soon, in a few minutes, the day after tomorrow, in the future, etc.
