Conjugación del verbo inglés
COULD GAIN

Verbo regular: gain - gained - gained

Afirmación

Forma simple	Forma con V-ing
I could gain you could gain he could gain we could gain you could gain they could gain	I could be gaining you could be gaining he could be gaining we could be gaining you could be gaining they could be gaining
Perfecto	Perfecto con V-ing
I could have gained you could have gained he could have gained we could have gained you could have gained they could have gained	I could have been gaining you could have been gaining he could have been gaining we could have been gaining you could have been gaining they could have been gaining

Negación

Forma simple	Forma con V-ing
I couldn't gain you couldn't gain he couldn't gain we couldn't gain you couldn't gain they couldn't gain	I couldn't be gaining you couldn't be gaining he couldn't be gaining we couldn't be gaining you couldn't be gaining they couldn't be gaining
Perfecto	Perfecto con V-ing
I couldn't have gained you couldn't have gained he couldn't have gained we couldn't have gained you couldn't have gained they couldn't have gained	I couldn't have been gaining you couldn't have been gaining he couldn't have been gaining we couldn't have been gaining you couldn't have been gaining they couldn't have been gaining

Forma interrogativa

Forma simple	Forma con V-ing
could I gain? could you gain? could he gain? could we gain? could you gain? could they gain?	could I be gaining? could you be gaining? could he be gaining? could we be gaining? could you be gaining? could they be gaining?
Perfecto	Perfecto con V-ing
could I have gained? could you have gained? could he have gained? could we have gained? could you have gained? could they have gained?	could I have been gaining? could you have been gaining? could he have been gaining? could we have been gaining? could you have been gaining? could they have been gaining?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I gain? couldn't you gain? couldn't he gain? couldn't we gain? couldn't you gain? couldn't they gain?	couldn't I be gaining? couldn't you be gaining? couldn't he be gaining? couldn't we be gaining? couldn't you be gaining? couldn't they be gaining?
Perfecto	Perfecto con V-ing
couldn't I have gained? couldn't you have gained? couldn't he have gained? couldn't we have gained? couldn't you have gained? couldn't they have gained?	couldn't I have been gaining? couldn't you have been gaining? couldn't he have been gaining? couldn't we have been gaining? couldn't you have been gaining? couldn't they have been gaining?