should quail
Regular verb: quail - quailed- quailed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd quail
you'd quail
she'd quail
we'd quail
you'd quail
they'd quail 	I'd be quailing
you'd be quailing
she'd be quailing
we'd be quailing
you'd be quailing
they'd be quailing	I should've quailed
you should've quailed
she 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
she 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
she 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
she 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
she 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
she 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 she quail?
should we quail?
should you quail?
should they quail? 	should I be quailing?
should you be quailing?
should she be quailing?
should we be quailing?
should you be quailing?
should they be quailing? 	should I have quailed?
should you have quailed?
should she 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 she 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 she 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 she 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 she 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 she have been quailing?
shouldn't we have been quailing?
shouldn't you have been quailing?
shouldn't they have been quailing?