English verb conjugation MUST HAVEN

Regular verb: haven - havened - havened

Affirmation

Simple form

I must haven
you must haven
he must haven
we must haven
you must haven
they must haven

V-ing form

I must be havening
you must be havening
he must be havening
we must be havening
you must be havening
they must be havening

Perfect

I must have havened
you must have havened
he must have havened
we must have havened
you must have havened
they must have havened

V-ing perfect

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

Negation

Simple form

I must not haven
you must not haven
he must not haven
we must not haven
you must not haven
they must not haven

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I haven?
must you haven?
must he haven?
must we haven?
must you haven?
must they haven?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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