should pre-empt
Regular verb: pre-empt - pre-empted- pre-empted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd pre-empt
you'd pre-empt
she'd pre-empt
we'd pre-empt
you'd pre-empt
they'd pre-empt 	I'd be pre-empting
you'd be pre-empting
she'd be pre-empting
we'd be pre-empting
you'd be pre-empting
they'd be pre-empting	I should've pre-empted
you should've pre-empted
she should've pre-empted
we should've pre-empted
you should've pre-empted
they should've pre-empted	I should've been pre-empting
you should've been pre-empting
she should've been pre-empting
we should've been pre-empting
you should've been pre-empting
they should've been pre-empting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't pre-empt
you shouldn't pre-empt
she shouldn't pre-empt
we shouldn't pre-empt
you shouldn't pre-empt
they shouldn't pre-empt 	I shouldn't be pre-empting
you shouldn't be pre-empting
she shouldn't be pre-empting
we shouldn't be pre-empting
you shouldn't be pre-empting
they shouldn't be pre-empting	I shouldn't have pre-empted
you shouldn't have pre-empted
she shouldn't have pre-empted
we shouldn't have pre-empted
you shouldn't have pre-empted
they shouldn't have pre-empted	I shouldn't have been pre-empting
you shouldn't have been pre-empting
she shouldn't have been pre-empting
we shouldn't have been pre-empting
you shouldn't have been pre-empting
they shouldn't have been pre-empting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I pre-empt?
should you pre-empt?
should she pre-empt?
should we pre-empt?
should you pre-empt?
should they pre-empt? 	should I be pre-empting?
should you be pre-empting?
should she be pre-empting?
should we be pre-empting?
should you be pre-empting?
should they be pre-empting? 	should I have pre-empted?
should you have pre-empted?
should she have pre-empted?
should we have pre-empted?
should you have pre-empted?
should they have pre-empted? 	should I have been pre-empting?
should you have been pre-empting?
should she have been pre-empting?
should we have been pre-empting?
should you have been pre-empting?
should they have been pre-empting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I pre-empt?
shouldn't you pre-empt?
shouldn't she pre-empt?
shouldn't we pre-empt?
shouldn't you pre-empt?
shouldn't they pre-empt? 	shouldn't I be pre-empting?
shouldn't you be pre-empting?
shouldn't she be pre-empting?
shouldn't we be pre-empting?
shouldn't you be pre-empting?
shouldn't they be pre-empting? 	shouldn't I have pre-empted?
shouldn't you have pre-empted?
shouldn't she have pre-empted?
shouldn't we have pre-empted?
shouldn't you have pre-empted?
shouldn't they have pre-empted? 	shouldn't I have been pre-empting?
shouldn't you have been pre-empting?
shouldn't she have been pre-empting?
shouldn't we have been pre-empting?
shouldn't you have been pre-empting?
shouldn't they have been pre-empting?