should wrench
Regular verb: wrench - wrenched- wrenched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd wrench
you'd wrench
he'd wrench
we'd wrench
you'd wrench
they'd wrench 	I'd be wrenching
you'd be wrenching
he'd be wrenching
we'd be wrenching
you'd be wrenching
they'd be wrenching	I should've wrenched
you should've wrenched
he should've wrenched
we should've wrenched
you should've wrenched
they should've wrenched	I should've been wrenching
you should've been wrenching
he should've been wrenching
we should've been wrenching
you should've been wrenching
they should've been wrenching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't wrench
you shouldn't wrench
he shouldn't wrench
we shouldn't wrench
you shouldn't wrench
they shouldn't wrench 	I shouldn't be wrenching
you shouldn't be wrenching
he shouldn't be wrenching
we shouldn't be wrenching
you shouldn't be wrenching
they shouldn't be wrenching	I shouldn't have wrenched
you shouldn't have wrenched
he shouldn't have wrenched
we shouldn't have wrenched
you shouldn't have wrenched
they shouldn't have wrenched	I shouldn't have been wrenching
you shouldn't have been wrenching
he shouldn't have been wrenching
we shouldn't have been wrenching
you shouldn't have been wrenching
they shouldn't have been wrenching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I wrench?
should you wrench?
should he wrench?
should we wrench?
should you wrench?
should they wrench? 	should I be wrenching?
should you be wrenching?
should he be wrenching?
should we be wrenching?
should you be wrenching?
should they be wrenching? 	should I have wrenched?
should you have wrenched?
should he have wrenched?
should we have wrenched?
should you have wrenched?
should they have wrenched? 	should I have been wrenching?
should you have been wrenching?
should he have been wrenching?
should we have been wrenching?
should you have been wrenching?
should they have been wrenching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I wrench?
shouldn't you wrench?
shouldn't he wrench?
shouldn't we wrench?
shouldn't you wrench?
shouldn't they wrench? 	shouldn't I be wrenching?
shouldn't you be wrenching?
shouldn't he be wrenching?
shouldn't we be wrenching?
shouldn't you be wrenching?
shouldn't they be wrenching? 	shouldn't I have wrenched?
shouldn't you have wrenched?
shouldn't he have wrenched?
shouldn't we have wrenched?
shouldn't you have wrenched?
shouldn't they have wrenched? 	shouldn't I have been wrenching?
shouldn't you have been wrenching?
shouldn't he have been wrenching?
shouldn't we have been wrenching?
shouldn't you have been wrenching?
shouldn't they have been wrenching?