should stiff-arm
Regular verb: stiff-arm - stiff-armed- stiff-armed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd stiff-arm
you'd stiff-arm
he'd stiff-arm
we'd stiff-arm
you'd stiff-arm
they'd stiff-arm 	I'd be stiff-arming
you'd be stiff-arming
he'd be stiff-arming
we'd be stiff-arming
you'd be stiff-arming
they'd be stiff-arming	I should've stiff-armed
you should've stiff-armed
he should've stiff-armed
we should've stiff-armed
you should've stiff-armed
they should've stiff-armed	I should've been stiff-arming
you should've been stiff-arming
he should've been stiff-arming
we should've been stiff-arming
you should've been stiff-arming
they should've been stiff-arming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't stiff-arm
you shouldn't stiff-arm
he shouldn't stiff-arm
we shouldn't stiff-arm
you shouldn't stiff-arm
they shouldn't stiff-arm 	I shouldn't be stiff-arming
you shouldn't be stiff-arming
he shouldn't be stiff-arming
we shouldn't be stiff-arming
you shouldn't be stiff-arming
they shouldn't be stiff-arming	I shouldn't have stiff-armed
you shouldn't have stiff-armed
he shouldn't have stiff-armed
we shouldn't have stiff-armed
you shouldn't have stiff-armed
they shouldn't have stiff-armed	I shouldn't have been stiff-arming
you shouldn't have been stiff-arming
he shouldn't have been stiff-arming
we shouldn't have been stiff-arming
you shouldn't have been stiff-arming
they shouldn't have been stiff-arming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I stiff-arm?
should you stiff-arm?
should he stiff-arm?
should we stiff-arm?
should you stiff-arm?
should they stiff-arm? 	should I be stiff-arming?
should you be stiff-arming?
should he be stiff-arming?
should we be stiff-arming?
should you be stiff-arming?
should they be stiff-arming? 	should I have stiff-armed?
should you have stiff-armed?
should he have stiff-armed?
should we have stiff-armed?
should you have stiff-armed?
should they have stiff-armed? 	should I have been stiff-arming?
should you have been stiff-arming?
should he have been stiff-arming?
should we have been stiff-arming?
should you have been stiff-arming?
should they have been stiff-arming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I stiff-arm?
shouldn't you stiff-arm?
shouldn't he stiff-arm?
shouldn't we stiff-arm?
shouldn't you stiff-arm?
shouldn't they stiff-arm? 	shouldn't I be stiff-arming?
shouldn't you be stiff-arming?
shouldn't he be stiff-arming?
shouldn't we be stiff-arming?
shouldn't you be stiff-arming?
shouldn't they be stiff-arming? 	shouldn't I have stiff-armed?
shouldn't you have stiff-armed?
shouldn't he have stiff-armed?
shouldn't we have stiff-armed?
shouldn't you have stiff-armed?
shouldn't they have stiff-armed? 	shouldn't I have been stiff-arming?
shouldn't you have been stiff-arming?
shouldn't he have been stiff-arming?
shouldn't we have been stiff-arming?
shouldn't you have been stiff-arming?
shouldn't they have been stiff-arming?