should burden
Regular verb: burden - burdened- burdened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd burden
you'd burden
she'd burden
we'd burden
you'd burden
they'd burden 	I'd be burdening
you'd be burdening
she'd be burdening
we'd be burdening
you'd be burdening
they'd be burdening	I should've burdened
you should've burdened
she should've burdened
we should've burdened
you should've burdened
they should've burdened	I should've been burdening
you should've been burdening
she should've been burdening
we should've been burdening
you should've been burdening
they should've been burdening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't burden
you shouldn't burden
she shouldn't burden
we shouldn't burden
you shouldn't burden
they shouldn't burden 	I shouldn't be burdening
you shouldn't be burdening
she shouldn't be burdening
we shouldn't be burdening
you shouldn't be burdening
they shouldn't be burdening	I shouldn't have burdened
you shouldn't have burdened
she shouldn't have burdened
we shouldn't have burdened
you shouldn't have burdened
they shouldn't have burdened	I shouldn't have been burdening
you shouldn't have been burdening
she shouldn't have been burdening
we shouldn't have been burdening
you shouldn't have been burdening
they shouldn't have been burdening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I burden?
should you burden?
should she burden?
should we burden?
should you burden?
should they burden? 	should I be burdening?
should you be burdening?
should she be burdening?
should we be burdening?
should you be burdening?
should they be burdening? 	should I have burdened?
should you have burdened?
should she have burdened?
should we have burdened?
should you have burdened?
should they have burdened? 	should I have been burdening?
should you have been burdening?
should she have been burdening?
should we have been burdening?
should you have been burdening?
should they have been burdening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I burden?
shouldn't you burden?
shouldn't she burden?
shouldn't we burden?
shouldn't you burden?
shouldn't they burden? 	shouldn't I be burdening?
shouldn't you be burdening?
shouldn't she be burdening?
shouldn't we be burdening?
shouldn't you be burdening?
shouldn't they be burdening? 	shouldn't I have burdened?
shouldn't you have burdened?
shouldn't she have burdened?
shouldn't we have burdened?
shouldn't you have burdened?
shouldn't they have burdened? 	shouldn't I have been burdening?
shouldn't you have been burdening?
shouldn't she have been burdening?
shouldn't we have been burdening?
shouldn't you have been burdening?
shouldn't they have been burdening?