English verb conjugation MAY ALTER

Regular verb: alter - altered - altered

Affirmation

Simple form

I may alter
you may alter
she may alter
we may alter
you may alter
they may alter

V-ing form

I may be altering
you may be altering
she may be altering
we may be altering
you may be altering
they may be altering

Perfect

I may have altered
you may have altered
she may have altered
we may have altered
you may have altered
they may have altered

V-ing perfect

I may have been altering
you may have been altering
she may have been altering
we may have been altering
you may have been altering
they may have been altering

Negation

Simple form

I may not alter
you may not alter
she may not alter
we may not alter
you may not alter
they may not alter

V-ing form

I may not be altering
you may not be altering
she may not be altering
we may not be altering
you may not be altering
they may not be altering

Perfect

I may not have altered
you may not have altered
she may not have altered
we may not have altered
you may not have altered
they may not have altered

V-ing perfect

I may not have been altering
you may not have been altering
she may not have been altering
we may not have been altering
you may not have been altering
they may not have been altering

Interrogative form

Simple form

may I alter?
may you alter?
may she alter?
may we alter?
may you alter?
may they alter?

V-ing form

may I be altering?
may you be altering?
may she be altering?
may we be altering?
may you be altering?
may they be altering?

Perfect

may I have altered?
may you have altered?
may she have altered?
may we have altered?
may you have altered?
may they have altered?

V-ing perfect

may I have been altering?
may you have been altering?
may she have been altering?
may we have been altering?
may you have been altering?
may they have been altering?

Interro-negative form

Simple form

may I not alter?
may you not alter?
may she not alter?
may we not alter?
may you not alter?
may they not alter?

V-ing form

may I not be altering?
may you not be altering?
may she not be altering?
may we not be altering?
may you not be altering?
may they not be altering?

Perfect

may I not have altered?
may you not have altered?
may she not have altered?
may we not have altered?
may you not have altered?
may they not have altered?

V-ing perfect

may I not have been altering?
may you not have been altering?
may she not have been altering?
may we not have been altering?
may you not have been altering?
may they not have been altering?

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