should wail
Regular verb: wail - wailed- wailed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd wail
you'd wail
she'd wail
we'd wail
you'd wail
they'd wail 	I'd be wailing
you'd be wailing
she'd be wailing
we'd be wailing
you'd be wailing
they'd be wailing	I should've wailed
you should've wailed
she should've wailed
we should've wailed
you should've wailed
they should've wailed	I should've been wailing
you should've been wailing
she should've been wailing
we should've been wailing
you should've been wailing
they should've been wailing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't wail
you shouldn't wail
she shouldn't wail
we shouldn't wail
you shouldn't wail
they shouldn't wail 	I shouldn't be wailing
you shouldn't be wailing
she shouldn't be wailing
we shouldn't be wailing
you shouldn't be wailing
they shouldn't be wailing	I shouldn't have wailed
you shouldn't have wailed
she shouldn't have wailed
we shouldn't have wailed
you shouldn't have wailed
they shouldn't have wailed	I shouldn't have been wailing
you shouldn't have been wailing
she shouldn't have been wailing
we shouldn't have been wailing
you shouldn't have been wailing
they shouldn't have been wailing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I wail?
should you wail?
should she wail?
should we wail?
should you wail?
should they wail? 	should I be wailing?
should you be wailing?
should she be wailing?
should we be wailing?
should you be wailing?
should they be wailing? 	should I have wailed?
should you have wailed?
should she have wailed?
should we have wailed?
should you have wailed?
should they have wailed? 	should I have been wailing?
should you have been wailing?
should she have been wailing?
should we have been wailing?
should you have been wailing?
should they have been wailing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I wail?
shouldn't you wail?
shouldn't she wail?
shouldn't we wail?
shouldn't you wail?
shouldn't they wail? 	shouldn't I be wailing?
shouldn't you be wailing?
shouldn't she be wailing?
shouldn't we be wailing?
shouldn't you be wailing?
shouldn't they be wailing? 	shouldn't I have wailed?
shouldn't you have wailed?
shouldn't she have wailed?
shouldn't we have wailed?
shouldn't you have wailed?
shouldn't they have wailed? 	shouldn't I have been wailing?
shouldn't you have been wailing?
shouldn't she have been wailing?
shouldn't we have been wailing?
shouldn't you have been wailing?
shouldn't they have been wailing?