时间状语:always, usually, often, sometimes, every week (day, year, month…), once a week, on Sundays, etc.
一般过去时
基本结构:did;was/were
时间状语:ago, yesterday, the day before yesterday, last week(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc.
现在进行时
基本结构:am/is/are+doing
时间状语:now, at this time, these days, etc.
过去进行时
基本结构:was/were+doing
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。
现在完成时
基本结构:have/has + done
时间状语:yet,already,recently,just,ever, lately, since…for…,in the past few years, etc.
过去完成时
基本结构:had + done.
时间状语:before, by the end of last year(term, month…),etc.
一般将来时
基本结构:①am/is/are/going to + do;②will/shall + do
时间状语:tomorrow, next day(week, month, year…),soon, in a few minutes, by…,the day after tomorrow, etc.
过去将来时
would do
时间状语:the next day(morning, year…),the following month(week…),etc.