should shadowbox
Regular verb: shadowbox - shadowboxed- shadowboxed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd shadowbox
you'd shadowbox
she'd shadowbox
we'd shadowbox
you'd shadowbox
they'd shadowbox 	I'd be shadowboxing
you'd be shadowboxing
she'd be shadowboxing
we'd be shadowboxing
you'd be shadowboxing
they'd be shadowboxing	I should've shadowboxed
you should've shadowboxed
she should've shadowboxed
we should've shadowboxed
you should've shadowboxed
they should've shadowboxed	I should've been shadowboxing
you should've been shadowboxing
she should've been shadowboxing
we should've been shadowboxing
you should've been shadowboxing
they should've been shadowboxing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't shadowbox
you shouldn't shadowbox
she shouldn't shadowbox
we shouldn't shadowbox
you shouldn't shadowbox
they shouldn't shadowbox 	I shouldn't be shadowboxing
you shouldn't be shadowboxing
she shouldn't be shadowboxing
we shouldn't be shadowboxing
you shouldn't be shadowboxing
they shouldn't be shadowboxing	I shouldn't have shadowboxed
you shouldn't have shadowboxed
she shouldn't have shadowboxed
we shouldn't have shadowboxed
you shouldn't have shadowboxed
they shouldn't have shadowboxed	I shouldn't have been shadowboxing
you shouldn't have been shadowboxing
she shouldn't have been shadowboxing
we shouldn't have been shadowboxing
you shouldn't have been shadowboxing
they shouldn't have been shadowboxing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I shadowbox?
should you shadowbox?
should she shadowbox?
should we shadowbox?
should you shadowbox?
should they shadowbox? 	should I be shadowboxing?
should you be shadowboxing?
should she be shadowboxing?
should we be shadowboxing?
should you be shadowboxing?
should they be shadowboxing? 	should I have shadowboxed?
should you have shadowboxed?
should she have shadowboxed?
should we have shadowboxed?
should you have shadowboxed?
should they have shadowboxed? 	should I have been shadowboxing?
should you have been shadowboxing?
should she have been shadowboxing?
should we have been shadowboxing?
should you have been shadowboxing?
should they have been shadowboxing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I shadowbox?
shouldn't you shadowbox?
shouldn't she shadowbox?
shouldn't we shadowbox?
shouldn't you shadowbox?
shouldn't they shadowbox? 	shouldn't I be shadowboxing?
shouldn't you be shadowboxing?
shouldn't she be shadowboxing?
shouldn't we be shadowboxing?
shouldn't you be shadowboxing?
shouldn't they be shadowboxing? 	shouldn't I have shadowboxed?
shouldn't you have shadowboxed?
shouldn't she have shadowboxed?
shouldn't we have shadowboxed?
shouldn't you have shadowboxed?
shouldn't they have shadowboxed? 	shouldn't I have been shadowboxing?
shouldn't you have been shadowboxing?
shouldn't she have been shadowboxing?
shouldn't we have been shadowboxing?
shouldn't you have been shadowboxing?
shouldn't they have been shadowboxing?