should soften
Regular verb: soften - softened- softened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd soften
you'd soften
he'd soften
we'd soften
you'd soften
they'd soften 	I'd be softening
you'd be softening
he'd be softening
we'd be softening
you'd be softening
they'd be softening	I should've softened
you should've softened
he should've softened
we should've softened
you should've softened
they should've softened	I should've been softening
you should've been softening
he should've been softening
we should've been softening
you should've been softening
they should've been softening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't soften
you shouldn't soften
he shouldn't soften
we shouldn't soften
you shouldn't soften
they shouldn't soften 	I shouldn't be softening
you shouldn't be softening
he shouldn't be softening
we shouldn't be softening
you shouldn't be softening
they shouldn't be softening	I shouldn't have softened
you shouldn't have softened
he shouldn't have softened
we shouldn't have softened
you shouldn't have softened
they shouldn't have softened	I shouldn't have been softening
you shouldn't have been softening
he shouldn't have been softening
we shouldn't have been softening
you shouldn't have been softening
they shouldn't have been softening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I soften?
should you soften?
should he soften?
should we soften?
should you soften?
should they soften? 	should I be softening?
should you be softening?
should he be softening?
should we be softening?
should you be softening?
should they be softening? 	should I have softened?
should you have softened?
should he have softened?
should we have softened?
should you have softened?
should they have softened? 	should I have been softening?
should you have been softening?
should he have been softening?
should we have been softening?
should you have been softening?
should they have been softening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I soften?
shouldn't you soften?
shouldn't he soften?
shouldn't we soften?
shouldn't you soften?
shouldn't they soften? 	shouldn't I be softening?
shouldn't you be softening?
shouldn't he be softening?
shouldn't we be softening?
shouldn't you be softening?
shouldn't they be softening? 	shouldn't I have softened?
shouldn't you have softened?
shouldn't he have softened?
shouldn't we have softened?
shouldn't you have softened?
shouldn't they have softened? 	shouldn't I have been softening?
shouldn't you have been softening?
shouldn't he have been softening?
shouldn't we have been softening?
shouldn't you have been softening?
shouldn't they have been softening?