华尔街学徒工
1.一般现在时用动词原形或第三人称单数形式。标志词有：everyday,evrySunday,often,always,usually,sometimes,onSundays,onweekdays等等。现在进行时am/is/are+v-ing形式。标志词：now,atthemomentLook!,Listen!一般过去时用动词的过去式。标志词有：yesterday,lastweek,lastmonth,lastyear,twoyearsago.一般将来时用will+v(原形）.标志词：tomorrow,inthefuture,nextweek,nextSunday.过去进行时：was/were+doing标志词：atthatmoment,atthistimeofyesterday,ateightlastnight.过去将来时：would+do没有什么标志词，通常用在从句里。现在完成时：have/has+动词的过分词.标志词：ever,never,since,already,yet,before.twice,once,threetimes.过去完成时：had+动词的过去分词。此时态是发生在过去的过去，就是在过去之前发生的事。通常用在从句里。有时也有标志词：bytheyear20002应该是你打错字了吧？不知道你指的是不是：berelatedto，同义词组：beconnectedwith，havesomethingtodowith，beassociatedwith。
匪号叶小二
一般现在时 sometimes, often, usually, always, every..., on Monday/..., on weedays,in spring/...,in the morning/...,等表示现在经常发生的动作的时间词。一般过去时 last..., ...ago, yesterday等表示过去时间的短语。一般将来时 next..., soon, in+段时间，tomorrow等表示将来的时间短语。现在进行时 now, at the moment, right now, 还有动词 look, listen, 及句式，It's 6 o'clock, It's time for sth.过去进行时 at eight o'clock yesterday, at this time yesterday, from one o'clock to three o'clock yesterday, between one o'clock and three o'clock yesterday, when/while 从句等表示过去的具体时间短语。现在完成时 already,yet,ever,never, before, just. recently, these days, in/during the past/last two years, how long 句式。过去完成时 by the end of ..., 及表示过去的从句，如，before等，主句是过去时的宾语从句。过去将来时 主句是过去时的宾语从句中如表示将来的意思就用过去将来时。
双子座K先生
一般现在时态见always，often，usually现在进行时态，见look，see，listen，now，所以一定用am、is、are+doing一般过去时态，见ago，before，yearsago用was、were，did一般将来时见表是未来的词:tomorrow/thisweekend/nextweek/nextyear/inthreedays三天后、intwohours两小时后,一般将来时用willdo、或am、is、are+goingtodo或m、is、are+to+do
风火轮妹妹123
always, sometimes, often, usually, 都是一般进行时不过often也可以用现在完成时-I have done that often.----never， yet是现在完成时还要哪些词你再问哦~
