can gain
Verbo regular: gain - gained- gained

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can gain
you can gain
she can gain
we can gain
you can gain
they can gain 	I can be gaining
you can be gaining
she can be gaining
we can be gaining
you can be gaining
they can be gaining	I can have gained
you can have gained
she can have gained
we can have gained
you can have gained
they can have gained	I can have been gaining
you can have been gaining
she can have been gaining
we can have been gaining
you can have been gaining
they can have been gaining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't gain
you can't gain
she can't gain
we can't gain
you can't gain
they can't gain 	I can't be gaining
you can't be gaining
she can't be gaining
we can't be gaining
you can't be gaining
they can't be gaining	I can't have gained
you can't have gained
she can't have gained
we can't have gained
you can't have gained
they can't have gained	I can't have been gaining
you can't have been gaining
she can't have been gaining
we can't have been gaining
you can't have been gaining
they can't have been gaining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I gain?
can you gain?
can she gain?
can we gain?
can you gain?
can they gain? 	can I be gaining?
can you be gaining?
can she be gaining?
can we be gaining?
can you be gaining?
can they be gaining? 	can I have gained?
can you have gained?
can she have gained?
can we have gained?
can you have gained?
can they have gained? 	can I have been gaining?
can you have been gaining?
can she have been gaining?
can we have been gaining?
can you have been gaining?
can they have been gaining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I gain?
can't you gain?
can't she gain?
can't we gain?
can't you gain?
can't they gain? 	can't I be gaining?
can't you be gaining?
can't she be gaining?
can't we be gaining?
can't you be gaining?
can't they be gaining? 	can't I have gained?
can't you have gained?
can't she have gained?
can't we have gained?
can't you have gained?
can't they have gained? 	can't I have been gaining?
can't you have been gaining?
can't she have been gaining?
can't we have been gaining?
can't you have been gaining?
can't they have been gaining?