should yuck
Regular verb: yuck - yucked- yucked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd yuck
you'd yuck
he'd yuck
we'd yuck
you'd yuck
they'd yuck 	I'd be yucking
you'd be yucking
he'd be yucking
we'd be yucking
you'd be yucking
they'd be yucking	I should've yucked
you should've yucked
he should've yucked
we should've yucked
you should've yucked
they should've yucked	I should've been yucking
you should've been yucking
he should've been yucking
we should've been yucking
you should've been yucking
they should've been yucking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't yuck
you shouldn't yuck
he shouldn't yuck
we shouldn't yuck
you shouldn't yuck
they shouldn't yuck 	I shouldn't be yucking
you shouldn't be yucking
he shouldn't be yucking
we shouldn't be yucking
you shouldn't be yucking
they shouldn't be yucking	I shouldn't have yucked
you shouldn't have yucked
he shouldn't have yucked
we shouldn't have yucked
you shouldn't have yucked
they shouldn't have yucked	I shouldn't have been yucking
you shouldn't have been yucking
he shouldn't have been yucking
we shouldn't have been yucking
you shouldn't have been yucking
they shouldn't have been yucking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I yuck?
should you yuck?
should he yuck?
should we yuck?
should you yuck?
should they yuck? 	should I be yucking?
should you be yucking?
should he be yucking?
should we be yucking?
should you be yucking?
should they be yucking? 	should I have yucked?
should you have yucked?
should he have yucked?
should we have yucked?
should you have yucked?
should they have yucked? 	should I have been yucking?
should you have been yucking?
should he have been yucking?
should we have been yucking?
should you have been yucking?
should they have been yucking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I yuck?
shouldn't you yuck?
shouldn't he yuck?
shouldn't we yuck?
shouldn't you yuck?
shouldn't they yuck? 	shouldn't I be yucking?
shouldn't you be yucking?
shouldn't he be yucking?
shouldn't we be yucking?
shouldn't you be yucking?
shouldn't they be yucking? 	shouldn't I have yucked?
shouldn't you have yucked?
shouldn't he have yucked?
shouldn't we have yucked?
shouldn't you have yucked?
shouldn't they have yucked? 	shouldn't I have been yucking?
shouldn't you have been yucking?
shouldn't he have been yucking?
shouldn't we have been yucking?
shouldn't you have been yucking?
shouldn't they have been yucking?