should tough
Regular verb: tough - toughed- toughed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd tough
you'd tough
she'd tough
we'd tough
you'd tough
they'd tough 	I'd be toughing
you'd be toughing
she'd be toughing
we'd be toughing
you'd be toughing
they'd be toughing	I should've toughed
you should've toughed
she 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
she should've been toughing
we should've been toughing
you should've been toughing
they should've been toughing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't tough
you shouldn't tough
she 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
she 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
she 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
she shouldn't have been toughing
we shouldn't have been toughing
you shouldn't have been toughing
they shouldn't have been toughing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I tough?
should you tough?
should she tough?
should we tough?
should you tough?
should they tough? 	should I be toughing?
should you be toughing?
should she be toughing?
should we be toughing?
should you be toughing?
should they be toughing? 	should I have toughed?
should you have toughed?
should she 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 she have been toughing?
should we have been toughing?
should you have been toughing?
should they have been toughing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I tough?
shouldn't you tough?
shouldn't she 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 she 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 she 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 she have been toughing?
shouldn't we have been toughing?
shouldn't you have been toughing?
shouldn't they have been toughing?