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 mustn't haven
you mustn't haven
he mustn't haven
we mustn't haven
you mustn't haven
they mustn't haven

V-ing form

I mustn't be havening
you mustn't be havening
he mustn't be havening
we mustn't be havening
you mustn't be havening
they mustn't be havening

Perfect

I mustn't have havened
you mustn't have havened
he mustn't have havened
we mustn't have havened
you mustn't have havened
they mustn't have havened

V-ing perfect

I mustn't have been havening
you mustn't have been havening
he mustn't have been havening
we mustn't have been havening
you mustn't have been havening
they mustn't 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

mustn't I haven?
mustn't you haven?
mustn't he haven?
mustn't we haven?
mustn't you haven?
mustn't they haven?

V-ing form

mustn't I be havening?
mustn't you be havening?
mustn't he be havening?
mustn't we be havening?
mustn't you be havening?
mustn't they be havening?

Perfect

mustn't I have havened?
mustn't you have havened?
mustn't he have havened?
mustn't we have havened?
mustn't you have havened?
mustn't they have havened?

V-ing perfect

mustn't I have been havening?
mustn't you have been havening?
mustn't he have been havening?
mustn't we have been havening?
mustn't you have been havening?
mustn't they have been havening?

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