should unchair
Regular verb: unchair - unchaired- unchaired

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd unchair
you'd unchair
she'd unchair
we'd unchair
you'd unchair
they'd unchair 	I'd be unchairing
you'd be unchairing
she'd be unchairing
we'd be unchairing
you'd be unchairing
they'd be unchairing	I should've unchaired
you should've unchaired
she should've unchaired
we should've unchaired
you should've unchaired
they should've unchaired	I should've been unchairing
you should've been unchairing
she should've been unchairing
we should've been unchairing
you should've been unchairing
they should've been unchairing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't unchair
you shouldn't unchair
she shouldn't unchair
we shouldn't unchair
you shouldn't unchair
they shouldn't unchair 	I shouldn't be unchairing
you shouldn't be unchairing
she shouldn't be unchairing
we shouldn't be unchairing
you shouldn't be unchairing
they shouldn't be unchairing	I shouldn't have unchaired
you shouldn't have unchaired
she shouldn't have unchaired
we shouldn't have unchaired
you shouldn't have unchaired
they shouldn't have unchaired	I shouldn't have been unchairing
you shouldn't have been unchairing
she shouldn't have been unchairing
we shouldn't have been unchairing
you shouldn't have been unchairing
they shouldn't have been unchairing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I unchair?
should you unchair?
should she unchair?
should we unchair?
should you unchair?
should they unchair? 	should I be unchairing?
should you be unchairing?
should she be unchairing?
should we be unchairing?
should you be unchairing?
should they be unchairing? 	should I have unchaired?
should you have unchaired?
should she have unchaired?
should we have unchaired?
should you have unchaired?
should they have unchaired? 	should I have been unchairing?
should you have been unchairing?
should she have been unchairing?
should we have been unchairing?
should you have been unchairing?
should they have been unchairing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I unchair?
shouldn't you unchair?
shouldn't she unchair?
shouldn't we unchair?
shouldn't you unchair?
shouldn't they unchair? 	shouldn't I be unchairing?
shouldn't you be unchairing?
shouldn't she be unchairing?
shouldn't we be unchairing?
shouldn't you be unchairing?
shouldn't they be unchairing? 	shouldn't I have unchaired?
shouldn't you have unchaired?
shouldn't she have unchaired?
shouldn't we have unchaired?
shouldn't you have unchaired?
shouldn't they have unchaired? 	shouldn't I have been unchairing?
shouldn't you have been unchairing?
shouldn't she have been unchairing?
shouldn't we have been unchairing?
shouldn't you have been unchairing?
shouldn't they have been unchairing?