would toughen
Regular verb: toughen - toughened- toughened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd toughen
you'd toughen
she'd toughen
we'd toughen
you'd toughen
they'd toughen 	I'd be toughening
you'd be toughening
she'd be toughening
we'd be toughening
you'd be toughening
they'd be toughening	I would've toughened
you would've toughened
she would've toughened
we would've toughened
you would've toughened
they would've toughened	I would've been toughening
you would've been toughening
she would've been toughening
we would've been toughening
you would've been toughening
they would've been toughening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I wouldn't toughen
you wouldn't toughen
she wouldn't toughen
we wouldn't toughen
you wouldn't toughen
they wouldn't toughen 	I wouldn't be toughening
you wouldn't be toughening
she wouldn't be toughening
we wouldn't be toughening
you wouldn't be toughening
they wouldn't be toughening	I wouldn't have toughened
you wouldn't have toughened
she wouldn't have toughened
we wouldn't have toughened
you wouldn't have toughened
they wouldn't have toughened	I wouldn't have been toughening
you wouldn't have been toughening
she wouldn't have been toughening
we wouldn't have been toughening
you wouldn't have been toughening
they wouldn't have been toughening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
would I toughen?
would you toughen?
would she toughen?
would we toughen?
would you toughen?
would they toughen? 	would I be toughening?
would you be toughening?
would she be toughening?
would we be toughening?
would you be toughening?
would they be toughening? 	would I have toughened?
would you have toughened?
would she have toughened?
would we have toughened?
would you have toughened?
would they have toughened? 	would I have been toughening?
would you have been toughening?
would she have been toughening?
would we have been toughening?
would you have been toughening?
would they have been toughening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
wouldn't I toughen?
wouldn't you toughen?
wouldn't she toughen?
wouldn't we toughen?
wouldn't you toughen?
wouldn't they toughen? 	wouldn't I be toughening?
wouldn't you be toughening?
wouldn't she be toughening?
wouldn't we be toughening?
wouldn't you be toughening?
wouldn't they be toughening? 	wouldn't I have toughened?
wouldn't you have toughened?
wouldn't she have toughened?
wouldn't we have toughened?
wouldn't you have toughened?
wouldn't they have toughened? 	wouldn't I have been toughening?
wouldn't you have been toughening?
wouldn't she have been toughening?
wouldn't we have been toughening?
wouldn't you have been toughening?
wouldn't they have been toughening?