Unreal past - summary

Refers to  FUTURE OR PRESENT


Someone + wish + someone/someone else +Past Simple --  wish about future and present
BUT:
Someone + wish + someone/someone else + could + base form -- regret

Someone + wish + someone/someone else + would + base form - annoyance,dissatisfaction

If only+ someone/someone else +Past Simple -- wish about future and present
BUT:
If only+ someone/someone else +could + base form -- regret
If only+ someone/someone else +would + base form - annoyance,dissatisfaction
someone +would rather +  someone else  + Past Simple -- preference, complaint or criticism
BUT: (someone)+would rather +base form 
It's (high/about) time + someone else +Past Simple 
BUT: It's (high/about) time + to + base form 
As if/as though+someone+Past Simple --for untrue situation
NOTE: As if I WERE or As if she WERE
Suppose+someone else + Past Simple --future and present


Refers to  PAST

Someone + wish + someone/someone else +Past Pefect -- regret
someone +would rather +  someone else  + Past Perfect -- preference, complaint or criticism
It's (high/about) time + someone else +Past Perfect
As if/as though+someone+Past Perfect --for unreal situation in the past
Suppose+someone else + Past Perfect 






Extra (not needed for the test):
Someone + wish + someone/someone else + could have  + past participle -- regret

Someone + wish + someone/someone else + would have + past participle - annoyance,dissatisfaction

If only+ someone/someone else +Past Perfect -- regret

If only+ someone/someone else +could have+ past participle -- regret
If only+ someone/someone else +would have+ past participle - annoyance,dissatisfaction)