Conjugación del verbo inglés
COULD SPRAIN

Verbo regular: sprain - sprained - sprained

Afirmación

Forma simple	Forma con V-ing
I could sprain you could sprain he could sprain we could sprain you could sprain they could sprain	I could be spraining you could be spraining he could be spraining we could be spraining you could be spraining they could be spraining
Perfecto	Perfecto con V-ing
I could have sprained you could have sprained he could have sprained we could have sprained you could have sprained they could have sprained	I could have been spraining you could have been spraining he could have been spraining we could have been spraining you could have been spraining they could have been spraining

Negación

Forma simple	Forma con V-ing
I couldn't sprain you couldn't sprain he couldn't sprain we couldn't sprain you couldn't sprain they couldn't sprain	I couldn't be spraining you couldn't be spraining he couldn't be spraining we couldn't be spraining you couldn't be spraining they couldn't be spraining
Perfecto	Perfecto con V-ing
I couldn't have sprained you couldn't have sprained he couldn't have sprained we couldn't have sprained you couldn't have sprained they couldn't have sprained	I couldn't have been spraining you couldn't have been spraining he couldn't have been spraining we couldn't have been spraining you couldn't have been spraining they couldn't have been spraining

Forma interrogativa

Forma simple	Forma con V-ing
could I sprain? could you sprain? could he sprain? could we sprain? could you sprain? could they sprain?	could I be spraining? could you be spraining? could he be spraining? could we be spraining? could you be spraining? could they be spraining?
Perfecto	Perfecto con V-ing
could I have sprained? could you have sprained? could he have sprained? could we have sprained? could you have sprained? could they have sprained?	could I have been spraining? could you have been spraining? could he have been spraining? could we have been spraining? could you have been spraining? could they have been spraining?

Forma interro-negativa

Forma simple	Forma con V-ing
couldn't I sprain? couldn't you sprain? couldn't he sprain? couldn't we sprain? couldn't you sprain? couldn't they sprain?	couldn't I be spraining? couldn't you be spraining? couldn't he be spraining? couldn't we be spraining? couldn't you be spraining? couldn't they be spraining?
Perfecto	Perfecto con V-ing
couldn't I have sprained? couldn't you have sprained? couldn't he have sprained? couldn't we have sprained? couldn't you have sprained? couldn't they have sprained?	couldn't I have been spraining? couldn't you have been spraining? couldn't he have been spraining? couldn't we have been spraining? couldn't you have been spraining? couldn't they have been spraining?