should behead
Regular verb: behead - beheaded- beheaded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd behead
you'd behead
she'd behead
we'd behead
you'd behead
they'd behead 	I'd be beheading
you'd be beheading
she'd be beheading
we'd be beheading
you'd be beheading
they'd be beheading	I should've beheaded
you should've beheaded
she should've beheaded
we should've beheaded
you should've beheaded
they should've beheaded	I should've been beheading
you should've been beheading
she should've been beheading
we should've been beheading
you should've been beheading
they should've been beheading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't behead
you shouldn't behead
she shouldn't behead
we shouldn't behead
you shouldn't behead
they shouldn't behead 	I shouldn't be beheading
you shouldn't be beheading
she shouldn't be beheading
we shouldn't be beheading
you shouldn't be beheading
they shouldn't be beheading	I shouldn't have beheaded
you shouldn't have beheaded
she shouldn't have beheaded
we shouldn't have beheaded
you shouldn't have beheaded
they shouldn't have beheaded	I shouldn't have been beheading
you shouldn't have been beheading
she shouldn't have been beheading
we shouldn't have been beheading
you shouldn't have been beheading
they shouldn't have been beheading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I behead?
should you behead?
should she behead?
should we behead?
should you behead?
should they behead? 	should I be beheading?
should you be beheading?
should she be beheading?
should we be beheading?
should you be beheading?
should they be beheading? 	should I have beheaded?
should you have beheaded?
should she have beheaded?
should we have beheaded?
should you have beheaded?
should they have beheaded? 	should I have been beheading?
should you have been beheading?
should she have been beheading?
should we have been beheading?
should you have been beheading?
should they have been beheading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I behead?
shouldn't you behead?
shouldn't she behead?
shouldn't we behead?
shouldn't you behead?
shouldn't they behead? 	shouldn't I be beheading?
shouldn't you be beheading?
shouldn't she be beheading?
shouldn't we be beheading?
shouldn't you be beheading?
shouldn't they be beheading? 	shouldn't I have beheaded?
shouldn't you have beheaded?
shouldn't she have beheaded?
shouldn't we have beheaded?
shouldn't you have beheaded?
shouldn't they have beheaded? 	shouldn't I have been beheading?
shouldn't you have been beheading?
shouldn't she have been beheading?
shouldn't we have been beheading?
shouldn't you have been beheading?
shouldn't they have been beheading?