should attach
Verbo regular: attach - attached- attached

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd attach
you'd attach
he'd attach
we'd attach
you'd attach
they'd attach 	I'd be attaching
you'd be attaching
he'd be attaching
we'd be attaching
you'd be attaching
they'd be attaching	I should've attached
you should've attached
he 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
he should've been attaching
we should've been attaching
you should've been attaching
they should've been attaching	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't attach
you shouldn't attach
he 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
he 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
he 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
he shouldn't have been attaching
we shouldn't have been attaching
you shouldn't have been attaching
they shouldn't have been attaching	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I attach?
should you attach?
should he attach?
should we attach?
should you attach?
should they attach? 	should I be attaching?
should you be attaching?
should he be attaching?
should we be attaching?
should you be attaching?
should they be attaching? 	should I have attached?
should you have attached?
should he 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 he have been attaching?
should we have been attaching?
should you have been attaching?
should they have been attaching? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I attach?
shouldn't you attach?
shouldn't he 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 he 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 he 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 he have been attaching?
shouldn't we have been attaching?
shouldn't you have been attaching?
shouldn't they have been attaching?