should master
Verbo regular: master - mastered- mastered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I'd master
you'd master
she'd master
we'd master
you'd master
they'd master 	I'd be mastering
you'd be mastering
she'd be mastering
we'd be mastering
you'd be mastering
they'd be mastering	I should've mastered
you should've mastered
she should've mastered
we should've mastered
you should've mastered
they should've mastered	I should've been mastering
you should've been mastering
she should've been mastering
we should've been mastering
you should've been mastering
they should've been mastering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shouldn't master
you shouldn't master
she shouldn't master
we shouldn't master
you shouldn't master
they shouldn't master 	I shouldn't be mastering
you shouldn't be mastering
she shouldn't be mastering
we shouldn't be mastering
you shouldn't be mastering
they shouldn't be mastering	I shouldn't have mastered
you shouldn't have mastered
she shouldn't have mastered
we shouldn't have mastered
you shouldn't have mastered
they shouldn't have mastered	I shouldn't have been mastering
you shouldn't have been mastering
she shouldn't have been mastering
we shouldn't have been mastering
you shouldn't have been mastering
they shouldn't have been mastering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I master?
should you master?
should she master?
should we master?
should you master?
should they master? 	should I be mastering?
should you be mastering?
should she be mastering?
should we be mastering?
should you be mastering?
should they be mastering? 	should I have mastered?
should you have mastered?
should she have mastered?
should we have mastered?
should you have mastered?
should they have mastered? 	should I have been mastering?
should you have been mastering?
should she have been mastering?
should we have been mastering?
should you have been mastering?
should they have been mastering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shouldn't I master?
shouldn't you master?
shouldn't she master?
shouldn't we master?
shouldn't you master?
shouldn't they master? 	shouldn't I be mastering?
shouldn't you be mastering?
shouldn't she be mastering?
shouldn't we be mastering?
shouldn't you be mastering?
shouldn't they be mastering? 	shouldn't I have mastered?
shouldn't you have mastered?
shouldn't she have mastered?
shouldn't we have mastered?
shouldn't you have mastered?
shouldn't they have mastered? 	shouldn't I have been mastering?
shouldn't you have been mastering?
shouldn't she have been mastering?
shouldn't we have been mastering?
shouldn't you have been mastering?
shouldn't they have been mastering?