should master
Verbo regolare: master - mastered- mastered

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I'd master
you'd master
he'd master
we'd master
you'd master
they'd master 	I'd be mastering
you'd be mastering
he'd be mastering
we'd be mastering
you'd be mastering
they'd be mastering	I should've mastered
you should've mastered
he 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
he should've been mastering
we should've been mastering
you should've been mastering
they should've been mastering	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I shouldn't master
you shouldn't master
he 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
he 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
he 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
he 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 semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
should I master?
should you master?
should he master?
should we master?
should you master?
should they master? 	should I be mastering?
should you be mastering?
should he be mastering?
should we be mastering?
should you be mastering?
should they be mastering? 	should I have mastered?
should you have mastered?
should he 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 he have been mastering?
should we have been mastering?
should you have been mastering?
should they have been mastering? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
shouldn't I master?
shouldn't you master?
shouldn't he 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 he 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 he 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 he have been mastering?
shouldn't we have been mastering?
shouldn't you have been mastering?
shouldn't they have been mastering?