English verb conjugation COULD SPRAIN

Regular verb: sprain - sprained - sprained

Affirmation

Simple form

I could sprain
you could sprain
she could sprain
we could sprain
you could sprain
they could sprain

V-ing form

I could be spraining
you could be spraining
she could be spraining
we could be spraining
you could be spraining
they could be spraining

Perfect

I could have sprained
you could have sprained
she could have sprained
we could have sprained
you could have sprained
they could have sprained

V-ing perfect

I could have been spraining
you could have been spraining
she could have been spraining
we could have been spraining
you could have been spraining
they could have been spraining

Negation

Simple form

I couldn't sprain
you couldn't sprain
she couldn't sprain
we couldn't sprain
you couldn't sprain
they couldn't sprain

V-ing form

I couldn't be spraining
you couldn't be spraining
she couldn't be spraining
we couldn't be spraining
you couldn't be spraining
they couldn't be spraining

Perfect

I couldn't have sprained
you couldn't have sprained
she couldn't have sprained
we couldn't have sprained
you couldn't have sprained
they couldn't have sprained

V-ing perfect

I couldn't have been spraining
you couldn't have been spraining
she couldn't have been spraining
we couldn't have been spraining
you couldn't have been spraining
they couldn't have been spraining

Interrogative form

Simple form

could I sprain?
could you sprain?
could she sprain?
could we sprain?
could you sprain?
could they sprain?

V-ing form

could I be spraining?
could you be spraining?
could she be spraining?
could we be spraining?
could you be spraining?
could they be spraining?

Perfect

could I have sprained?
could you have sprained?
could she have sprained?
could we have sprained?
could you have sprained?
could they have sprained?

V-ing perfect

could I have been spraining?
could you have been spraining?
could she have been spraining?
could we have been spraining?
could you have been spraining?
could they have been spraining?

Interro-negative form

Simple form

couldn't I sprain?
couldn't you sprain?
couldn't she sprain?
couldn't we sprain?
couldn't you sprain?
couldn't they sprain?

V-ing form

couldn't I be spraining?
couldn't you be spraining?
couldn't she be spraining?
couldn't we be spraining?
couldn't you be spraining?
couldn't they be spraining?

Perfect

couldn't I have sprained?
couldn't you have sprained?
couldn't she have sprained?
couldn't we have sprained?
couldn't you have sprained?
couldn't they have sprained?

V-ing perfect

couldn't I have been spraining?
couldn't you have been spraining?
couldn't she have been spraining?
couldn't we have been spraining?
couldn't you have been spraining?
couldn't they have been spraining?

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