should mast
Verbo regular: mast - masted- masted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I'd mast
you'd mast
she'd mast
we'd mast
you'd mast
they'd mast 	I'd be masting
you'd be masting
she'd be masting
we'd be masting
you'd be masting
they'd be masting	I should've masted
you should've masted
she should've masted
we should've masted
you should've masted
they should've masted	I should've been masting
you should've been masting
she should've been masting
we should've been masting
you should've been masting
they should've been masting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shouldn't mast
you shouldn't mast
she shouldn't mast
we shouldn't mast
you shouldn't mast
they shouldn't mast 	I shouldn't be masting
you shouldn't be masting
she shouldn't be masting
we shouldn't be masting
you shouldn't be masting
they shouldn't be masting	I shouldn't have masted
you shouldn't have masted
she shouldn't have masted
we shouldn't have masted
you shouldn't have masted
they shouldn't have masted	I shouldn't have been masting
you shouldn't have been masting
she shouldn't have been masting
we shouldn't have been masting
you shouldn't have been masting
they shouldn't have been masting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I mast?
should you mast?
should she mast?
should we mast?
should you mast?
should they mast? 	should I be masting?
should you be masting?
should she be masting?
should we be masting?
should you be masting?
should they be masting? 	should I have masted?
should you have masted?
should she have masted?
should we have masted?
should you have masted?
should they have masted? 	should I have been masting?
should you have been masting?
should she have been masting?
should we have been masting?
should you have been masting?
should they have been masting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shouldn't I mast?
shouldn't you mast?
shouldn't she mast?
shouldn't we mast?
shouldn't you mast?
shouldn't they mast? 	shouldn't I be masting?
shouldn't you be masting?
shouldn't she be masting?
shouldn't we be masting?
shouldn't you be masting?
shouldn't they be masting? 	shouldn't I have masted?
shouldn't you have masted?
shouldn't she have masted?
shouldn't we have masted?
shouldn't you have masted?
shouldn't they have masted? 	shouldn't I have been masting?
shouldn't you have been masting?
shouldn't she have been masting?
shouldn't we have been masting?
shouldn't you have been masting?
shouldn't they have been masting?