should tough
Verbo regular: tough - toughed- toughed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I'd tough
you'd tough
he'd tough
we'd tough
you'd tough
they'd tough 	I'd be toughing
you'd be toughing
he'd be toughing
we'd be toughing
you'd be toughing
they'd be toughing	I should've toughed
you should've toughed
he should've toughed
we should've toughed
you should've toughed
they should've toughed	I should've been toughing
you should've been toughing
he should've been toughing
we should've been toughing
you should've been toughing
they should've been toughing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shouldn't tough
you shouldn't tough
he shouldn't tough
we shouldn't tough
you shouldn't tough
they shouldn't tough 	I shouldn't be toughing
you shouldn't be toughing
he shouldn't be toughing
we shouldn't be toughing
you shouldn't be toughing
they shouldn't be toughing	I shouldn't have toughed
you shouldn't have toughed
he shouldn't have toughed
we shouldn't have toughed
you shouldn't have toughed
they shouldn't have toughed	I shouldn't have been toughing
you shouldn't have been toughing
he shouldn't have been toughing
we shouldn't have been toughing
you shouldn't have been toughing
they shouldn't have been toughing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I tough?
should you tough?
should he tough?
should we tough?
should you tough?
should they tough? 	should I be toughing?
should you be toughing?
should he be toughing?
should we be toughing?
should you be toughing?
should they be toughing? 	should I have toughed?
should you have toughed?
should he have toughed?
should we have toughed?
should you have toughed?
should they have toughed? 	should I have been toughing?
should you have been toughing?
should he have been toughing?
should we have been toughing?
should you have been toughing?
should they have been toughing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shouldn't I tough?
shouldn't you tough?
shouldn't he tough?
shouldn't we tough?
shouldn't you tough?
shouldn't they tough? 	shouldn't I be toughing?
shouldn't you be toughing?
shouldn't he be toughing?
shouldn't we be toughing?
shouldn't you be toughing?
shouldn't they be toughing? 	shouldn't I have toughed?
shouldn't you have toughed?
shouldn't he have toughed?
shouldn't we have toughed?
shouldn't you have toughed?
shouldn't they have toughed? 	shouldn't I have been toughing?
shouldn't you have been toughing?
shouldn't he have been toughing?
shouldn't we have been toughing?
shouldn't you have been toughing?
shouldn't they have been toughing?