English verb conjugation MUST ALTER ALTER

Regular verb: alter alter - alter altered - alter altered

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form

I must alter alter
you must alter alter
he must alter alter
we must alter alter
you must alter alter
they must alter alter

V-ing form

I must be alter altering
you must be alter altering
he must be alter altering
we must be alter altering
you must be alter altering
they must be alter altering

Perfect

I must have alter altered
you must have alter altered
he must have alter altered
we must have alter altered
you must have alter altered
they must have alter altered

V-ing perfect

I must have been alter altering
you must have been alter altering
he must have been alter altering
we must have been alter altering
you must have been alter altering
they must have been alter altering

Negation

Simple form

I must not alter alter
you must not alter alter
he must not alter alter
we must not alter alter
you must not alter alter
they must not alter alter

V-ing form

I must not be alter altering
you must not be alter altering
he must not be alter altering
we must not be alter altering
you must not be alter altering
they must not be alter altering

Perfect

I must not have alter altered
you must not have alter altered
he must not have alter altered
we must not have alter altered
you must not have alter altered
they must not have alter altered

V-ing perfect

I must not have been alter altering
you must not have been alter altering
he must not have been alter altering
we must not have been alter altering
you must not have been alter altering
they must not have been alter altering

Interrogative form

Simple form

must I alter alter?
must you alter alter?
must he alter alter?
must we alter alter?
must you alter alter?
must they alter alter?

V-ing form

must I be alter altering?
must you be alter altering?
must he be alter altering?
must we be alter altering?
must you be alter altering?
must they be alter altering?

Perfect

must I have alter altered?
must you have alter altered?
must he have alter altered?
must we have alter altered?
must you have alter altered?
must they have alter altered?

V-ing perfect

must I have been alter altering?
must you have been alter altering?
must he have been alter altering?
must we have been alter altering?
must you have been alter altering?
must they have been alter altering?

Interro-negative form

Simple form

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

V-ing form

must I not be alter altering?
must you not be alter altering?
must he not be alter altering?
must we not be alter altering?
must you not be alter altering?
must they not be alter altering?

Perfect

must I not have alter altered?
must you not have alter altered?
must he not have alter altered?
must we not have alter altered?
must you not have alter altered?
must they not have alter altered?

V-ing perfect

must I not have been alter altering?
must you not have been alter altering?
must he not have been alter altering?
must we not have been alter altering?
must you not have been alter altering?
must they not have been alter altering?

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