male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation MUST UNDERSTOCK
Regular verb: understock - understocked - understocked
Affirmation
Simple form
I must understockyou must understock
she must understock
we must understock
you must understock
they must understock
V-ing form
I must be understockingyou must be understocking
she must be understocking
we must be understocking
you must be understocking
they must be understocking
Perfect
I must have understockedyou must have understocked
she must have understocked
we must have understocked
you must have understocked
they must have understocked
V-ing perfect
I must have been understockingyou must have been understocking
she must have been understocking
we must have been understocking
you must have been understocking
they must have been understocking
Negation
Simple form
I must not understockyou must not understock
she must not understock
we must not understock
you must not understock
they must not understock
V-ing form
I must not be understockingyou must not be understocking
she must not be understocking
we must not be understocking
you must not be understocking
they must not be understocking
Perfect
I must not have understockedyou must not have understocked
she must not have understocked
we must not have understocked
you must not have understocked
they must not have understocked
V-ing perfect
I must not have been understockingyou must not have been understocking
she must not have been understocking
we must not have been understocking
you must not have been understocking
they must not have been understocking
Interrogative form
Simple form
must I understock?must you understock?
must she understock?
must we understock?
must you understock?
must they understock?
V-ing form
must I be understocking?must you be understocking?
must she be understocking?
must we be understocking?
must you be understocking?
must they be understocking?
Perfect
must I have understocked?must you have understocked?
must she have understocked?
must we have understocked?
must you have understocked?
must they have understocked?
V-ing perfect
must I have been understocking?must you have been understocking?
must she have been understocking?
must we have been understocking?
must you have been understocking?
must they have been understocking?
Interro-negative form
Simple form
must I not understock?must you not understock?
must she not understock?
must we not understock?
must you not understock?
must they not understock?
V-ing form
must I not be understocking?must you not be understocking?
must she not be understocking?
must we not be understocking?
must you not be understocking?
must they not be understocking?
Perfect
must I not have understocked?must you not have understocked?
must she not have understocked?
must we not have understocked?
must you not have understocked?
must they not have understocked?
V-ing perfect
must I not have been understocking?must you not have been understocking?
must she not have been understocking?
must we not have been understocking?
must you not have been understocking?
must they not have been understocking?