should fulfil
Regular verb: fulfil - fulfilled- fulfilled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd fulfil
you'd fulfil
she'd fulfil
we'd fulfil
you'd fulfil
they'd fulfil 	I'd be fulfilling
you'd be fulfilling
she'd be fulfilling
we'd be fulfilling
you'd be fulfilling
they'd be fulfilling	I should've fulfilled
you should've fulfilled
she should've fulfilled
we should've fulfilled
you should've fulfilled
they should've fulfilled	I should've been fulfilling
you should've been fulfilling
she should've been fulfilling
we should've been fulfilling
you should've been fulfilling
they should've been fulfilling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't fulfil
you shouldn't fulfil
she shouldn't fulfil
we shouldn't fulfil
you shouldn't fulfil
they shouldn't fulfil 	I shouldn't be fulfilling
you shouldn't be fulfilling
she shouldn't be fulfilling
we shouldn't be fulfilling
you shouldn't be fulfilling
they shouldn't be fulfilling	I shouldn't have fulfilled
you shouldn't have fulfilled
she shouldn't have fulfilled
we shouldn't have fulfilled
you shouldn't have fulfilled
they shouldn't have fulfilled	I shouldn't have been fulfilling
you shouldn't have been fulfilling
she shouldn't have been fulfilling
we shouldn't have been fulfilling
you shouldn't have been fulfilling
they shouldn't have been fulfilling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I fulfil?
should you fulfil?
should she fulfil?
should we fulfil?
should you fulfil?
should they fulfil? 	should I be fulfilling?
should you be fulfilling?
should she be fulfilling?
should we be fulfilling?
should you be fulfilling?
should they be fulfilling? 	should I have fulfilled?
should you have fulfilled?
should she have fulfilled?
should we have fulfilled?
should you have fulfilled?
should they have fulfilled? 	should I have been fulfilling?
should you have been fulfilling?
should she have been fulfilling?
should we have been fulfilling?
should you have been fulfilling?
should they have been fulfilling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I fulfil?
shouldn't you fulfil?
shouldn't she fulfil?
shouldn't we fulfil?
shouldn't you fulfil?
shouldn't they fulfil? 	shouldn't I be fulfilling?
shouldn't you be fulfilling?
shouldn't she be fulfilling?
shouldn't we be fulfilling?
shouldn't you be fulfilling?
shouldn't they be fulfilling? 	shouldn't I have fulfilled?
shouldn't you have fulfilled?
shouldn't she have fulfilled?
shouldn't we have fulfilled?
shouldn't you have fulfilled?
shouldn't they have fulfilled? 	shouldn't I have been fulfilling?
shouldn't you have been fulfilling?
shouldn't she have been fulfilling?
shouldn't we have been fulfilling?
shouldn't you have been fulfilling?
shouldn't they have been fulfilling?