should gain
Verbo regular: gain - gained- gained

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I'd gain
you'd gain
he'd gain
we'd gain
you'd gain
they'd gain 	I'd be gaining
you'd be gaining
he'd be gaining
we'd be gaining
you'd be gaining
they'd be gaining	I should've gained
you should've gained
he should've gained
we should've gained
you should've gained
they should've gained	I should've been gaining
you should've been gaining
he should've been gaining
we should've been gaining
you should've been gaining
they should've been gaining	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shouldn't gain
you shouldn't gain
he shouldn't gain
we shouldn't gain
you shouldn't gain
they shouldn't gain 	I shouldn't be gaining
you shouldn't be gaining
he shouldn't be gaining
we shouldn't be gaining
you shouldn't be gaining
they shouldn't be gaining	I shouldn't have gained
you shouldn't have gained
he shouldn't have gained
we shouldn't have gained
you shouldn't have gained
they shouldn't have gained	I shouldn't have been gaining
you shouldn't have been gaining
he shouldn't have been gaining
we shouldn't have been gaining
you shouldn't have been gaining
they shouldn't have been gaining	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I gain?
should you gain?
should he gain?
should we gain?
should you gain?
should they gain? 	should I be gaining?
should you be gaining?
should he be gaining?
should we be gaining?
should you be gaining?
should they be gaining? 	should I have gained?
should you have gained?
should he have gained?
should we have gained?
should you have gained?
should they have gained? 	should I have been gaining?
should you have been gaining?
should he have been gaining?
should we have been gaining?
should you have been gaining?
should they have been gaining? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shouldn't I gain?
shouldn't you gain?
shouldn't he gain?
shouldn't we gain?
shouldn't you gain?
shouldn't they gain? 	shouldn't I be gaining?
shouldn't you be gaining?
shouldn't he be gaining?
shouldn't we be gaining?
shouldn't you be gaining?
shouldn't they be gaining? 	shouldn't I have gained?
shouldn't you have gained?
shouldn't he have gained?
shouldn't we have gained?
shouldn't you have gained?
shouldn't they have gained? 	shouldn't I have been gaining?
shouldn't you have been gaining?
shouldn't he have been gaining?
shouldn't we have been gaining?
shouldn't you have been gaining?
shouldn't they have been gaining?