female gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation MUST UNDO
Irregular verb: undo - undid - undone
Affirmation
Simple form
I must undoyou must undo
he must undo
we must undo
you must undo
they must undo
V-ing form
I must be undoingyou must be undoing
he must be undoing
we must be undoing
you must be undoing
they must be undoing
Perfect
I must have undoneyou must have undone
he must have undone
we must have undone
you must have undone
they must have undone
V-ing perfect
I must have been undoingyou must have been undoing
he must have been undoing
we must have been undoing
you must have been undoing
they must have been undoing
Negation
Simple form
I must not undoyou must not undo
he must not undo
we must not undo
you must not undo
they must not undo
V-ing form
I must not be undoingyou must not be undoing
he must not be undoing
we must not be undoing
you must not be undoing
they must not be undoing
Perfect
I must not have undoneyou must not have undone
he must not have undone
we must not have undone
you must not have undone
they must not have undone
V-ing perfect
I must not have been undoingyou must not have been undoing
he must not have been undoing
we must not have been undoing
you must not have been undoing
they must not have been undoing
Interrogative form
Simple form
must I undo?must you undo?
must he undo?
must we undo?
must you undo?
must they undo?
V-ing form
must I be undoing?must you be undoing?
must he be undoing?
must we be undoing?
must you be undoing?
must they be undoing?
Perfect
must I have undone?must you have undone?
must he have undone?
must we have undone?
must you have undone?
must they have undone?
V-ing perfect
must I have been undoing?must you have been undoing?
must he have been undoing?
must we have been undoing?
must you have been undoing?
must they have been undoing?
Interro-negative form
Simple form
must I not undo?must you not undo?
must he not undo?
must we not undo?
must you not undo?
must they not undo?
V-ing form
must I not be undoing?must you not be undoing?
must he not be undoing?
must we not be undoing?
must you not be undoing?
must they not be undoing?
Perfect
must I not have undone?must you not have undone?
must he not have undone?
must we not have undone?
must you not have undone?
must they not have undone?
V-ing perfect
must I not have been undoing?must you not have been undoing?
must he not have been undoing?
must we not have been undoing?
must you not have been undoing?
must they not have been undoing?