English verb conjugation MUST SUB

Regular verb: sub - subbed - subbed

Affirmation

Simple form

I must sub
you must sub
he must sub
we must sub
you must sub
they must sub

V-ing form

I must be subbing
you must be subbing
he must be subbing
we must be subbing
you must be subbing
they must be subbing

Perfect

I must have subbed
you must have subbed
he must have subbed
we must have subbed
you must have subbed
they must have subbed

V-ing perfect

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

Negation

Simple form

I must not sub
you must not sub
he must not sub
we must not sub
you must not sub
they must not sub

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I sub?
must you sub?
must he sub?
must we sub?
must you sub?
must they sub?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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