should flunk
Verbo regular: flunk - flunked- flunked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I'd flunk
you'd flunk
he'd flunk
we'd flunk
you'd flunk
they'd flunk 	I'd be flunking
you'd be flunking
he'd be flunking
we'd be flunking
you'd be flunking
they'd be flunking	I should've flunked
you should've flunked
he should've flunked
we should've flunked
you should've flunked
they should've flunked	I should've been flunking
you should've been flunking
he should've been flunking
we should've been flunking
you should've been flunking
they should've been flunking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shouldn't flunk
you shouldn't flunk
he shouldn't flunk
we shouldn't flunk
you shouldn't flunk
they shouldn't flunk 	I shouldn't be flunking
you shouldn't be flunking
he shouldn't be flunking
we shouldn't be flunking
you shouldn't be flunking
they shouldn't be flunking	I shouldn't have flunked
you shouldn't have flunked
he shouldn't have flunked
we shouldn't have flunked
you shouldn't have flunked
they shouldn't have flunked	I shouldn't have been flunking
you shouldn't have been flunking
he shouldn't have been flunking
we shouldn't have been flunking
you shouldn't have been flunking
they shouldn't have been flunking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I flunk?
should you flunk?
should he flunk?
should we flunk?
should you flunk?
should they flunk? 	should I be flunking?
should you be flunking?
should he be flunking?
should we be flunking?
should you be flunking?
should they be flunking? 	should I have flunked?
should you have flunked?
should he have flunked?
should we have flunked?
should you have flunked?
should they have flunked? 	should I have been flunking?
should you have been flunking?
should he have been flunking?
should we have been flunking?
should you have been flunking?
should they have been flunking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shouldn't I flunk?
shouldn't you flunk?
shouldn't he flunk?
shouldn't we flunk?
shouldn't you flunk?
shouldn't they flunk? 	shouldn't I be flunking?
shouldn't you be flunking?
shouldn't he be flunking?
shouldn't we be flunking?
shouldn't you be flunking?
shouldn't they be flunking? 	shouldn't I have flunked?
shouldn't you have flunked?
shouldn't he have flunked?
shouldn't we have flunked?
shouldn't you have flunked?
shouldn't they have flunked? 	shouldn't I have been flunking?
shouldn't you have been flunking?
shouldn't he have been flunking?
shouldn't we have been flunking?
shouldn't you have been flunking?
shouldn't they have been flunking?