should preface
Regular verb: preface - prefaced- prefaced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd preface
you'd preface
she'd preface
we'd preface
you'd preface
they'd preface 	I'd be prefacing
you'd be prefacing
she'd be prefacing
we'd be prefacing
you'd be prefacing
they'd be prefacing	I should've prefaced
you should've prefaced
she should've prefaced
we should've prefaced
you should've prefaced
they should've prefaced	I should've been prefacing
you should've been prefacing
she should've been prefacing
we should've been prefacing
you should've been prefacing
they should've been prefacing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't preface
you shouldn't preface
she shouldn't preface
we shouldn't preface
you shouldn't preface
they shouldn't preface 	I shouldn't be prefacing
you shouldn't be prefacing
she shouldn't be prefacing
we shouldn't be prefacing
you shouldn't be prefacing
they shouldn't be prefacing	I shouldn't have prefaced
you shouldn't have prefaced
she shouldn't have prefaced
we shouldn't have prefaced
you shouldn't have prefaced
they shouldn't have prefaced	I shouldn't have been prefacing
you shouldn't have been prefacing
she shouldn't have been prefacing
we shouldn't have been prefacing
you shouldn't have been prefacing
they shouldn't have been prefacing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I preface?
should you preface?
should she preface?
should we preface?
should you preface?
should they preface? 	should I be prefacing?
should you be prefacing?
should she be prefacing?
should we be prefacing?
should you be prefacing?
should they be prefacing? 	should I have prefaced?
should you have prefaced?
should she have prefaced?
should we have prefaced?
should you have prefaced?
should they have prefaced? 	should I have been prefacing?
should you have been prefacing?
should she have been prefacing?
should we have been prefacing?
should you have been prefacing?
should they have been prefacing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I preface?
shouldn't you preface?
shouldn't she preface?
shouldn't we preface?
shouldn't you preface?
shouldn't they preface? 	shouldn't I be prefacing?
shouldn't you be prefacing?
shouldn't she be prefacing?
shouldn't we be prefacing?
shouldn't you be prefacing?
shouldn't they be prefacing? 	shouldn't I have prefaced?
shouldn't you have prefaced?
shouldn't she have prefaced?
shouldn't we have prefaced?
shouldn't you have prefaced?
shouldn't they have prefaced? 	shouldn't I have been prefacing?
shouldn't you have been prefacing?
shouldn't she have been prefacing?
shouldn't we have been prefacing?
shouldn't you have been prefacing?
shouldn't they have been prefacing?