female gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation MUST BUSY
Regular verb: busy - busied - busied
Affirmation
Simple form
I must busyyou must busy
he must busy
we must busy
you must busy
they must busy
V-ing form
I must be busyingyou must be busying
he must be busying
we must be busying
you must be busying
they must be busying
Perfect
I must have busiedyou must have busied
he must have busied
we must have busied
you must have busied
they must have busied
V-ing perfect
I must have been busyingyou must have been busying
he must have been busying
we must have been busying
you must have been busying
they must have been busying
Negation
Simple form
I mustn't busyyou mustn't busy
he mustn't busy
we mustn't busy
you mustn't busy
they mustn't busy
V-ing form
I mustn't be busyingyou mustn't be busying
he mustn't be busying
we mustn't be busying
you mustn't be busying
they mustn't be busying
Perfect
I mustn't have busiedyou mustn't have busied
he mustn't have busied
we mustn't have busied
you mustn't have busied
they mustn't have busied
V-ing perfect
I mustn't have been busyingyou mustn't have been busying
he mustn't have been busying
we mustn't have been busying
you mustn't have been busying
they mustn't have been busying
Interrogative form
Simple form
must I busy?must you busy?
must he busy?
must we busy?
must you busy?
must they busy?
V-ing form
must I be busying?must you be busying?
must he be busying?
must we be busying?
must you be busying?
must they be busying?
Perfect
must I have busied?must you have busied?
must he have busied?
must we have busied?
must you have busied?
must they have busied?
V-ing perfect
must I have been busying?must you have been busying?
must he have been busying?
must we have been busying?
must you have been busying?
must they have been busying?
Interro-negative form
Simple form
mustn't I busy?mustn't you busy?
mustn't he busy?
mustn't we busy?
mustn't you busy?
mustn't they busy?
V-ing form
mustn't I be busying?mustn't you be busying?
mustn't he be busying?
mustn't we be busying?
mustn't you be busying?
mustn't they be busying?
Perfect
mustn't I have busied?mustn't you have busied?
mustn't he have busied?
mustn't we have busied?
mustn't you have busied?
mustn't they have busied?
V-ing perfect
mustn't I have been busying?mustn't you have been busying?
mustn't he have been busying?
mustn't we have been busying?
mustn't you have been busying?
mustn't they have been busying?