English verb conjugation COULD KEEP

Irregular verb: keep - kept - kept

Affirmation

Simple form

I could keep
you could keep
she could keep
we could keep
you could keep
they could keep

V-ing form

I could be keeping
you could be keeping
she could be keeping
we could be keeping
you could be keeping
they could be keeping

Perfect

I could have kept
you could have kept
she could have kept
we could have kept
you could have kept
they could have kept

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I keep?
could you keep?
could she keep?
could we keep?
could you keep?
could they keep?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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