should kill
Regular verb: kill - killed- killed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd kill
you'd kill
she'd kill
we'd kill
you'd kill
they'd kill 	I'd be killing
you'd be killing
she'd be killing
we'd be killing
you'd be killing
they'd be killing	I should've killed
you should've killed
she should've killed
we should've killed
you should've killed
they should've killed	I should've been killing
you should've been killing
she should've been killing
we should've been killing
you should've been killing
they should've been killing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't kill
you shouldn't kill
she shouldn't kill
we shouldn't kill
you shouldn't kill
they shouldn't kill 	I shouldn't be killing
you shouldn't be killing
she shouldn't be killing
we shouldn't be killing
you shouldn't be killing
they shouldn't be killing	I shouldn't have killed
you shouldn't have killed
she shouldn't have killed
we shouldn't have killed
you shouldn't have killed
they shouldn't have killed	I shouldn't have been killing
you shouldn't have been killing
she shouldn't have been killing
we shouldn't have been killing
you shouldn't have been killing
they shouldn't have been killing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I kill?
should you kill?
should she kill?
should we kill?
should you kill?
should they kill? 	should I be killing?
should you be killing?
should she be killing?
should we be killing?
should you be killing?
should they be killing? 	should I have killed?
should you have killed?
should she have killed?
should we have killed?
should you have killed?
should they have killed? 	should I have been killing?
should you have been killing?
should she have been killing?
should we have been killing?
should you have been killing?
should they have been killing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I kill?
shouldn't you kill?
shouldn't she kill?
shouldn't we kill?
shouldn't you kill?
shouldn't they kill? 	shouldn't I be killing?
shouldn't you be killing?
shouldn't she be killing?
shouldn't we be killing?
shouldn't you be killing?
shouldn't they be killing? 	shouldn't I have killed?
shouldn't you have killed?
shouldn't she have killed?
shouldn't we have killed?
shouldn't you have killed?
shouldn't they have killed? 	shouldn't I have been killing?
shouldn't you have been killing?
shouldn't she have been killing?
shouldn't we have been killing?
shouldn't you have been killing?
shouldn't they have been killing?