English verb conjugation COULD RIB

Regular verb: rib - ribed - ribed

Affirmation

Simple form

I could rib
you could rib
she could rib
we could rib
you could rib
they could rib

V-ing form

I could be ribing
you could be ribing
she could be ribing
we could be ribing
you could be ribing
they could be ribing

Perfect

I could have ribed
you could have ribed
she could have ribed
we could have ribed
you could have ribed
they could have ribed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I rib?
could you rib?
could she rib?
could we rib?
could you rib?
could they rib?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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