English verb conjugation COULD CONSTRAIN

Regular verb: constrain - constrained - constrained

Affirmation

Simple form

I could constrain
you could constrain
she could constrain
we could constrain
you could constrain
they could constrain

V-ing form

I could be constraining
you could be constraining
she could be constraining
we could be constraining
you could be constraining
they could be constraining

Perfect

I could have constrained
you could have constrained
she could have constrained
we could have constrained
you could have constrained
they could have constrained

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I constrain?
could you constrain?
could she constrain?
could we constrain?
could you constrain?
could they constrain?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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