English verb conjugation COULD REFRAIN

Regular verb: refrain - refrained - refrained

Affirmation

Simple form

I could refrain
you could refrain
he could refrain
we could refrain
you could refrain
they could refrain

V-ing form

I could be refraining
you could be refraining
he could be refraining
we could be refraining
you could be refraining
they could be refraining

Perfect

I could have refrained
you could have refrained
he could have refrained
we could have refrained
you could have refrained
they could have refrained

V-ing perfect

I could have been refraining
you could have been refraining
he could have been refraining
we could have been refraining
you could have been refraining
they could have been refraining

Negation

Simple form

I couldn't refrain
you couldn't refrain
he couldn't refrain
we couldn't refrain
you couldn't refrain
they couldn't refrain

V-ing form

I couldn't be refraining
you couldn't be refraining
he couldn't be refraining
we couldn't be refraining
you couldn't be refraining
they couldn't be refraining

Perfect

I couldn't have refrained
you couldn't have refrained
he couldn't have refrained
we couldn't have refrained
you couldn't have refrained
they couldn't have refrained

V-ing perfect

I couldn't have been refraining
you couldn't have been refraining
he couldn't have been refraining
we couldn't have been refraining
you couldn't have been refraining
they couldn't have been refraining

Interrogative form

Simple form

could I refrain?
could you refrain?
could he refrain?
could we refrain?
could you refrain?
could they refrain?

V-ing form

could I be refraining?
could you be refraining?
could he be refraining?
could we be refraining?
could you be refraining?
could they be refraining?

Perfect

could I have refrained?
could you have refrained?
could he have refrained?
could we have refrained?
could you have refrained?
could they have refrained?

V-ing perfect

could I have been refraining?
could you have been refraining?
could he have been refraining?
could we have been refraining?
could you have been refraining?
could they have been refraining?

Interro-negative form

Simple form

couldn't I refrain?
couldn't you refrain?
couldn't he refrain?
couldn't we refrain?
couldn't you refrain?
couldn't they refrain?

V-ing form

couldn't I be refraining?
couldn't you be refraining?
couldn't he be refraining?
couldn't we be refraining?
couldn't you be refraining?
couldn't they be refraining?

Perfect

couldn't I have refrained?
couldn't you have refrained?
couldn't he have refrained?
couldn't we have refrained?
couldn't you have refrained?
couldn't they have refrained?

V-ing perfect

couldn't I have been refraining?
couldn't you have been refraining?
couldn't he have been refraining?
couldn't we have been refraining?
couldn't you have been refraining?
couldn't they have been refraining?

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