in短语是什么时态的标志词答:1.一般现在时:sometimes,often,usually,always,regularly,generally,every day,once aweek,at present,nowadays, at the moment.2.一般过去时:yesterday,last week,three days ago,in 1980 3.一般将来时:be going to, be to, be about to 4.过去将来时:should/would+动词原形(should第一人称...