should attach
Regular verb: attach - attached- attached

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd attach
you'd attach
she'd attach
we'd attach
you'd attach
they'd attach 	I'd be attaching
you'd be attaching
she'd be attaching
we'd be attaching
you'd be attaching
they'd be attaching	I should've attached
you should've attached
she should've attached
we should've attached
you should've attached
they should've attached	I should've been attaching
you should've been attaching
she should've been attaching
we should've been attaching
you should've been attaching
they should've been attaching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't attach
you shouldn't attach
she shouldn't attach
we shouldn't attach
you shouldn't attach
they shouldn't attach 	I shouldn't be attaching
you shouldn't be attaching
she shouldn't be attaching
we shouldn't be attaching
you shouldn't be attaching
they shouldn't be attaching	I shouldn't have attached
you shouldn't have attached
she shouldn't have attached
we shouldn't have attached
you shouldn't have attached
they shouldn't have attached	I shouldn't have been attaching
you shouldn't have been attaching
she shouldn't have been attaching
we shouldn't have been attaching
you shouldn't have been attaching
they shouldn't have been attaching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I attach?
should you attach?
should she attach?
should we attach?
should you attach?
should they attach? 	should I be attaching?
should you be attaching?
should she be attaching?
should we be attaching?
should you be attaching?
should they be attaching? 	should I have attached?
should you have attached?
should she have attached?
should we have attached?
should you have attached?
should they have attached? 	should I have been attaching?
should you have been attaching?
should she have been attaching?
should we have been attaching?
should you have been attaching?
should they have been attaching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I attach?
shouldn't you attach?
shouldn't she attach?
shouldn't we attach?
shouldn't you attach?
shouldn't they attach? 	shouldn't I be attaching?
shouldn't you be attaching?
shouldn't she be attaching?
shouldn't we be attaching?
shouldn't you be attaching?
shouldn't they be attaching? 	shouldn't I have attached?
shouldn't you have attached?
shouldn't she have attached?
shouldn't we have attached?
shouldn't you have attached?
shouldn't they have attached? 	shouldn't I have been attaching?
shouldn't you have been attaching?
shouldn't she have been attaching?
shouldn't we have been attaching?
shouldn't you have been attaching?
shouldn't they have been attaching?