should pretreat
Verbo regular: pretreat - pretreated- pretreated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I'd pretreat
you'd pretreat
she'd pretreat
we'd pretreat
you'd pretreat
they'd pretreat 	I'd be pretreating
you'd be pretreating
she'd be pretreating
we'd be pretreating
you'd be pretreating
they'd be pretreating	I should've pretreated
you should've pretreated
she should've pretreated
we should've pretreated
you should've pretreated
they should've pretreated	I should've been pretreating
you should've been pretreating
she should've been pretreating
we should've been pretreating
you should've been pretreating
they should've been pretreating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shouldn't pretreat
you shouldn't pretreat
she shouldn't pretreat
we shouldn't pretreat
you shouldn't pretreat
they shouldn't pretreat 	I shouldn't be pretreating
you shouldn't be pretreating
she shouldn't be pretreating
we shouldn't be pretreating
you shouldn't be pretreating
they shouldn't be pretreating	I shouldn't have pretreated
you shouldn't have pretreated
she shouldn't have pretreated
we shouldn't have pretreated
you shouldn't have pretreated
they shouldn't have pretreated	I shouldn't have been pretreating
you shouldn't have been pretreating
she shouldn't have been pretreating
we shouldn't have been pretreating
you shouldn't have been pretreating
they shouldn't have been pretreating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I pretreat?
should you pretreat?
should she pretreat?
should we pretreat?
should you pretreat?
should they pretreat? 	should I be pretreating?
should you be pretreating?
should she be pretreating?
should we be pretreating?
should you be pretreating?
should they be pretreating? 	should I have pretreated?
should you have pretreated?
should she have pretreated?
should we have pretreated?
should you have pretreated?
should they have pretreated? 	should I have been pretreating?
should you have been pretreating?
should she have been pretreating?
should we have been pretreating?
should you have been pretreating?
should they have been pretreating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shouldn't I pretreat?
shouldn't you pretreat?
shouldn't she pretreat?
shouldn't we pretreat?
shouldn't you pretreat?
shouldn't they pretreat? 	shouldn't I be pretreating?
shouldn't you be pretreating?
shouldn't she be pretreating?
shouldn't we be pretreating?
shouldn't you be pretreating?
shouldn't they be pretreating? 	shouldn't I have pretreated?
shouldn't you have pretreated?
shouldn't she have pretreated?
shouldn't we have pretreated?
shouldn't you have pretreated?
shouldn't they have pretreated? 	shouldn't I have been pretreating?
shouldn't you have been pretreating?
shouldn't she have been pretreating?
shouldn't we have been pretreating?
shouldn't you have been pretreating?
shouldn't they have been pretreating?