tenses for senior one(lillian 编辑)

Tenses	Active	Question Form(act)	Passive	Question Form(PSV)	be'
Simple Present	√'s'/×'s'	do/does+original verb	is/am/are+p.p	is/am/are+p.p	is/am/are
Simple Past	past tense	did+original verb	was/were+p.p	was/were+p.p	was/were
simple future	will/shall+original verb	will/shall+original verb	will/shall+be+p.p	will/shall+be+p.p	will be/shall be
present continuous	is/am/are+V+ing	is/am/are+V+ing	is/am/are+being+p.p	is/am/are+being+p.p	is/am/are
past continuous	was/were+V+ing	was/were+V+ing	was/were+being+p.p	was/were+being+p.p	was/were
Future Continuous	will/shall+be+V+ing	will/shall+be+V+ing	-	-	will be/shall be
Present Perfect	has/have+p.p	has/have+pp	has/have+been+p.p	has/have+been+p.p	has/have+been
Past Perfect	had+p.p	had+p.p	had+been+p.p	had+been+p.p	had+been
Present Perfect Continuous	has/have+been+V+ing	has/have+been+V+ing	-	-

Keyword:

Tenses	Keyword
Simple Present	sometimes,frequently,never(truth),once a week
Simple Past	ago,this morning,the day before yesterday
simple future	later on,this month,tonight,this evening,in an hour,the day after tomorrow,until he arrives
present continuous	right now,at the moment,at this moment,at present,for the time being,this year
past continuous	at that moment,for three hours just now,the whole evening,when+past tense
Future Continuous	at 5 this Sunday,in half an hour's time,by the end of this year,when+present tense
Present Perfect	since,never,recently,several,just,so far,still,many(year),for(time)
Past Perfect	when,after,2 actions happened
Present Perfect Continuous	all morning,still how long all day,the actions still going on

If-conditional	Active Form	Passive Form
Likely	[√'s'/×'s'][will+original verb]	[is/am/are+p.p][will+be+p.p]
Unlikely	[past tense][would+originalverb]	[was/were+p.p][would+be+p.p]
Impossible	[had+p.p][would+have+p.p]	[had+been+p.p][would+have+been+p.p]