English verb conjugation COULD CUBE

Regular verb: cube - cubed - cubed

Affirmation

Simple form

I could cube
you could cube
he could cube
we could cube
you could cube
they could cube

V-ing form

I could be cubing
you could be cubing
he could be cubing
we could be cubing
you could be cubing
they could be cubing

Perfect

I could have cubed
you could have cubed
he could have cubed
we could have cubed
you could have cubed
they could have cubed

V-ing perfect

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

Negation

Simple form

I couldn't cube
you couldn't cube
he couldn't cube
we couldn't cube
you couldn't cube
they couldn't cube

V-ing form

I couldn't be cubing
you couldn't be cubing
he couldn't be cubing
we couldn't be cubing
you couldn't be cubing
they couldn't be cubing

Perfect

I couldn't have cubed
you couldn't have cubed
he couldn't have cubed
we couldn't have cubed
you couldn't have cubed
they couldn't have cubed

V-ing perfect

I couldn't have been cubing
you couldn't have been cubing
he couldn't have been cubing
we couldn't have been cubing
you couldn't have been cubing
they couldn't have been cubing

Interrogative form

Simple form

could I cube?
could you cube?
could he cube?
could we cube?
could you cube?
could they cube?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

couldn't I cube?
couldn't you cube?
couldn't he cube?
couldn't we cube?
couldn't you cube?
couldn't they cube?

V-ing form

couldn't I be cubing?
couldn't you be cubing?
couldn't he be cubing?
couldn't we be cubing?
couldn't you be cubing?
couldn't they be cubing?

Perfect

couldn't I have cubed?
couldn't you have cubed?
couldn't he have cubed?
couldn't we have cubed?
couldn't you have cubed?
couldn't they have cubed?

V-ing perfect

couldn't I have been cubing?
couldn't you have been cubing?
couldn't he have been cubing?
couldn't we have been cubing?
couldn't you have been cubing?
couldn't they have been cubing?

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