should downgrade
Regular verb: downgrade - downgraded- downgraded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd downgrade
you'd downgrade
he'd downgrade
we'd downgrade
you'd downgrade
they'd downgrade 	I'd be downgrading
you'd be downgrading
he'd be downgrading
we'd be downgrading
you'd be downgrading
they'd be downgrading	I should've downgraded
you should've downgraded
he should've downgraded
we should've downgraded
you should've downgraded
they should've downgraded	I should've been downgrading
you should've been downgrading
he should've been downgrading
we should've been downgrading
you should've been downgrading
they should've been downgrading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't downgrade
you shouldn't downgrade
he shouldn't downgrade
we shouldn't downgrade
you shouldn't downgrade
they shouldn't downgrade 	I shouldn't be downgrading
you shouldn't be downgrading
he shouldn't be downgrading
we shouldn't be downgrading
you shouldn't be downgrading
they shouldn't be downgrading	I shouldn't have downgraded
you shouldn't have downgraded
he shouldn't have downgraded
we shouldn't have downgraded
you shouldn't have downgraded
they shouldn't have downgraded	I shouldn't have been downgrading
you shouldn't have been downgrading
he shouldn't have been downgrading
we shouldn't have been downgrading
you shouldn't have been downgrading
they shouldn't have been downgrading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I downgrade?
should you downgrade?
should he downgrade?
should we downgrade?
should you downgrade?
should they downgrade? 	should I be downgrading?
should you be downgrading?
should he be downgrading?
should we be downgrading?
should you be downgrading?
should they be downgrading? 	should I have downgraded?
should you have downgraded?
should he have downgraded?
should we have downgraded?
should you have downgraded?
should they have downgraded? 	should I have been downgrading?
should you have been downgrading?
should he have been downgrading?
should we have been downgrading?
should you have been downgrading?
should they have been downgrading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I downgrade?
shouldn't you downgrade?
shouldn't he downgrade?
shouldn't we downgrade?
shouldn't you downgrade?
shouldn't they downgrade? 	shouldn't I be downgrading?
shouldn't you be downgrading?
shouldn't he be downgrading?
shouldn't we be downgrading?
shouldn't you be downgrading?
shouldn't they be downgrading? 	shouldn't I have downgraded?
shouldn't you have downgraded?
shouldn't he have downgraded?
shouldn't we have downgraded?
shouldn't you have downgraded?
shouldn't they have downgraded? 	shouldn't I have been downgrading?
shouldn't you have been downgrading?
shouldn't he have been downgrading?
shouldn't we have been downgrading?
shouldn't you have been downgrading?
shouldn't they have been downgrading?