一般现在时every…,sometimes,at…,onSunday,
一般过去时yesterday,lastweek,anhourago,theotherday,in1982,justnow
一般将来时next…,tomorrow,in+时间,
现在完成时for,since,sofar,ever,never,just,yet,till/until,uptonow,inpastyears,always,recently
过去完成时before,by,until,when,after,once,assoonas
过去进行时thismorning,thewholemorning,allday,yesterday,fromninetotenlastevening…when,while
将来进行时soon,tomorrow,thisevening,onSunday,bythistime,tomorrow,intwodays,tomorrowevening