English verb conjugation MUST CUBE

Regular verb: cube - cubed - cubed

Affirmation

Simple form

I must cube
you must cube
he must cube
we must cube
you must cube
they must cube

V-ing form

I must be cubing
you must be cubing
he must be cubing
we must be cubing
you must be cubing
they must be cubing

Perfect

I must have cubed
you must have cubed
he must have cubed
we must have cubed
you must have cubed
they must have cubed

V-ing perfect

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

Negation

Simple form

I must not cube
you must not cube
he must not cube
we must not cube
you must not cube
they must not cube

V-ing form

I must not be cubing
you must not be cubing
he must not be cubing
we must not be cubing
you must not be cubing
they must not be cubing

Perfect

I must not have cubed
you must not have cubed
he must not have cubed
we must not have cubed
you must not have cubed
they must not have cubed

V-ing perfect

I must not have been cubing
you must not have been cubing
he must not have been cubing
we must not have been cubing
you must not have been cubing
they must not have been cubing

Interrogative form

Simple form

must I cube?
must you cube?
must he cube?
must we cube?
must you cube?
must they cube?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

must I not cube?
must you not cube?
must he not cube?
must we not cube?
must you not cube?
must they not cube?

V-ing form

must I not be cubing?
must you not be cubing?
must he not be cubing?
must we not be cubing?
must you not be cubing?
must they not be cubing?

Perfect

must I not have cubed?
must you not have cubed?
must he not have cubed?
must we not have cubed?
must you not have cubed?
must they not have cubed?

V-ing perfect

must I not have been cubing?
must you not have been cubing?
must he not have been cubing?
must we not have been cubing?
must you not have been cubing?
must they not have been cubing?

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