English verb conjugation COULD BUCKLE

Regular verb: buckle - buckled - buckled

Affirmation

Simple form

I could buckle
you could buckle
she could buckle
we could buckle
you could buckle
they could buckle

V-ing form

I could be buckling
you could be buckling
she could be buckling
we could be buckling
you could be buckling
they could be buckling

Perfect

I could have buckled
you could have buckled
she 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
she could have been buckling
we could have been buckling
you could have been buckling
they could have been buckling

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I buckle?
could you buckle?
could she buckle?
could we buckle?
could you buckle?
could they buckle?

V-ing form

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

Perfect

could I have buckled?
could you have buckled?
could she 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 she have been buckling?
could we have been buckling?
could you have been buckling?
could they have been buckling?

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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