English verb conjugation COULD BUCKLE

Regular verb: buckle - buckled - buckled

Affirmation

Simple form

I could buckle
you could buckle
he could buckle
we could buckle
you could buckle
they could buckle

V-ing form

I could be buckling
you could be buckling
he could be buckling
we could be buckling
you could be buckling
they could be buckling

Perfect

I could have buckled
you could have buckled
he could have buckled
we could have buckled
you could have buckled
they could have buckled

V-ing perfect

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

Negation

Simple form

I could not buckle
you could not buckle
he could not buckle
we could not buckle
you could not buckle
they could not buckle

V-ing form

I could not be buckling
you could not be buckling
he could not be buckling
we could not be buckling
you could not be buckling
they could not be buckling

Perfect

I could not have buckled
you could not have buckled
he could not have buckled
we could not have buckled
you could not have buckled
they could not have buckled

V-ing perfect

I could not have been buckling
you could not have been buckling
he could not have been buckling
we could not have been buckling
you could not have been buckling
they could not have been buckling

Interrogative form

Simple form

could I buckle?
could you buckle?
could he buckle?
could we buckle?
could you buckle?
could they buckle?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not buckle?
could you not buckle?
could he not buckle?
could we not buckle?
could you not buckle?
could they not buckle?

V-ing form

could I not be buckling?
could you not be buckling?
could he not be buckling?
could we not be buckling?
could you not be buckling?
could they not be buckling?

Perfect

could I not have buckled?
could you not have buckled?
could he not have buckled?
could we not have buckled?
could you not have buckled?
could they not have buckled?

V-ing perfect

could I not have been buckling?
could you not have been buckling?
could he not have been buckling?
could we not have been buckling?
could you not have been buckling?
could they not have been buckling?

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