male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation MUST CAPTAIN
Regular verb: captain - captained - captained
Affirmation
Simple form
I must captainyou must captain
she must captain
we must captain
you must captain
they must captain
V-ing form
I must be captainingyou must be captaining
she must be captaining
we must be captaining
you must be captaining
they must be captaining
Perfect
I must have captainedyou must have captained
she must have captained
we must have captained
you must have captained
they must have captained
V-ing perfect
I must have been captainingyou must have been captaining
she must have been captaining
we must have been captaining
you must have been captaining
they must have been captaining
Negation
Simple form
I mustn't captainyou mustn't captain
she mustn't captain
we mustn't captain
you mustn't captain
they mustn't captain
V-ing form
I mustn't be captainingyou mustn't be captaining
she mustn't be captaining
we mustn't be captaining
you mustn't be captaining
they mustn't be captaining
Perfect
I mustn't have captainedyou mustn't have captained
she mustn't have captained
we mustn't have captained
you mustn't have captained
they mustn't have captained
V-ing perfect
I mustn't have been captainingyou mustn't have been captaining
she mustn't have been captaining
we mustn't have been captaining
you mustn't have been captaining
they mustn't have been captaining
Interrogative form
Simple form
must I captain?must you captain?
must she captain?
must we captain?
must you captain?
must they captain?
V-ing form
must I be captaining?must you be captaining?
must she be captaining?
must we be captaining?
must you be captaining?
must they be captaining?
Perfect
must I have captained?must you have captained?
must she have captained?
must we have captained?
must you have captained?
must they have captained?
V-ing perfect
must I have been captaining?must you have been captaining?
must she have been captaining?
must we have been captaining?
must you have been captaining?
must they have been captaining?
Interro-negative form
Simple form
mustn't I captain?mustn't you captain?
mustn't she captain?
mustn't we captain?
mustn't you captain?
mustn't they captain?
V-ing form
mustn't I be captaining?mustn't you be captaining?
mustn't she be captaining?
mustn't we be captaining?
mustn't you be captaining?
mustn't they be captaining?
Perfect
mustn't I have captained?mustn't you have captained?
mustn't she have captained?
mustn't we have captained?
mustn't you have captained?
mustn't they have captained?
V-ing perfect
mustn't I have been captaining?mustn't you have been captaining?
mustn't she have been captaining?
mustn't we have been captaining?
mustn't you have been captaining?
mustn't they have been captaining?