should quail
Regular verb: quail - quailed- quailed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd quail
you'd quail
he'd quail
we'd quail
you'd quail
they'd quail 	I'd be quailing
you'd be quailing
he'd be quailing
we'd be quailing
you'd be quailing
they'd be quailing	I should've quailed
you should've quailed
he should've quailed
we should've quailed
you should've quailed
they should've quailed	I should've been quailing
you should've been quailing
he should've been quailing
we should've been quailing
you should've been quailing
they should've been quailing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't quail
you shouldn't quail
he shouldn't quail
we shouldn't quail
you shouldn't quail
they shouldn't quail 	I shouldn't be quailing
you shouldn't be quailing
he shouldn't be quailing
we shouldn't be quailing
you shouldn't be quailing
they shouldn't be quailing	I shouldn't have quailed
you shouldn't have quailed
he shouldn't have quailed
we shouldn't have quailed
you shouldn't have quailed
they shouldn't have quailed	I shouldn't have been quailing
you shouldn't have been quailing
he shouldn't have been quailing
we shouldn't have been quailing
you shouldn't have been quailing
they shouldn't have been quailing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I quail?
should you quail?
should he quail?
should we quail?
should you quail?
should they quail? 	should I be quailing?
should you be quailing?
should he be quailing?
should we be quailing?
should you be quailing?
should they be quailing? 	should I have quailed?
should you have quailed?
should he have quailed?
should we have quailed?
should you have quailed?
should they have quailed? 	should I have been quailing?
should you have been quailing?
should he have been quailing?
should we have been quailing?
should you have been quailing?
should they have been quailing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I quail?
shouldn't you quail?
shouldn't he quail?
shouldn't we quail?
shouldn't you quail?
shouldn't they quail? 	shouldn't I be quailing?
shouldn't you be quailing?
shouldn't he be quailing?
shouldn't we be quailing?
shouldn't you be quailing?
shouldn't they be quailing? 	shouldn't I have quailed?
shouldn't you have quailed?
shouldn't he have quailed?
shouldn't we have quailed?
shouldn't you have quailed?
shouldn't they have quailed? 	shouldn't I have been quailing?
shouldn't you have been quailing?
shouldn't he have been quailing?
shouldn't we have been quailing?
shouldn't you have been quailing?
shouldn't they have been quailing?