should attribute
Verbo regular: attribute - attributed- attributed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd attribute
you'd attribute
he'd attribute
we'd attribute
you'd attribute
they'd attribute 	I'd be attributing
you'd be attributing
he'd be attributing
we'd be attributing
you'd be attributing
they'd be attributing	I should've attributed
you should've attributed
he should've attributed
we should've attributed
you should've attributed
they should've attributed	I should've been attributing
you should've been attributing
he should've been attributing
we should've been attributing
you should've been attributing
they should've been attributing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't attribute
you shouldn't attribute
he shouldn't attribute
we shouldn't attribute
you shouldn't attribute
they shouldn't attribute 	I shouldn't be attributing
you shouldn't be attributing
he shouldn't be attributing
we shouldn't be attributing
you shouldn't be attributing
they shouldn't be attributing	I shouldn't have attributed
you shouldn't have attributed
he shouldn't have attributed
we shouldn't have attributed
you shouldn't have attributed
they shouldn't have attributed	I shouldn't have been attributing
you shouldn't have been attributing
he shouldn't have been attributing
we shouldn't have been attributing
you shouldn't have been attributing
they shouldn't have been attributing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I attribute?
should you attribute?
should he attribute?
should we attribute?
should you attribute?
should they attribute? 	should I be attributing?
should you be attributing?
should he be attributing?
should we be attributing?
should you be attributing?
should they be attributing? 	should I have attributed?
should you have attributed?
should he have attributed?
should we have attributed?
should you have attributed?
should they have attributed? 	should I have been attributing?
should you have been attributing?
should he have been attributing?
should we have been attributing?
should you have been attributing?
should they have been attributing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I attribute?
shouldn't you attribute?
shouldn't he attribute?
shouldn't we attribute?
shouldn't you attribute?
shouldn't they attribute? 	shouldn't I be attributing?
shouldn't you be attributing?
shouldn't he be attributing?
shouldn't we be attributing?
shouldn't you be attributing?
shouldn't they be attributing? 	shouldn't I have attributed?
shouldn't you have attributed?
shouldn't he have attributed?
shouldn't we have attributed?
shouldn't you have attributed?
shouldn't they have attributed? 	shouldn't I have been attributing?
shouldn't you have been attributing?
shouldn't he have been attributing?
shouldn't we have been attributing?
shouldn't you have been attributing?
shouldn't they have been attributing?