should attribute
Verbo regular: attribute - attributed- attributed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I'd attribute
you'd attribute
she'd attribute
we'd attribute
you'd attribute
they'd attribute 	I'd be attributing
you'd be attributing
she'd be attributing
we'd be attributing
you'd be attributing
they'd be attributing	I should've attributed
you should've attributed
she 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
she should've been attributing
we should've been attributing
you should've been attributing
they should've been attributing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shouldn't attribute
you shouldn't attribute
she 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
she 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
she 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
she 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 com V-ing 	Perfeito 	Perfeito com V-ing 	
should I attribute?
should you attribute?
should she attribute?
should we attribute?
should you attribute?
should they attribute? 	should I be attributing?
should you be attributing?
should she be attributing?
should we be attributing?
should you be attributing?
should they be attributing? 	should I have attributed?
should you have attributed?
should she 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 she have been attributing?
should we have been attributing?
should you have been attributing?
should they have been attributing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shouldn't I attribute?
shouldn't you attribute?
shouldn't she 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 she 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 she 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 she have been attributing?
shouldn't we have been attributing?
shouldn't you have been attributing?
shouldn't they have been attributing?