I must audit you must audit she must audit we must audit you must audit they must audit
V-ing form
I must be auditing you must be auditing she must be auditing we must be auditing you must be auditing they must be auditing
Perfect
I must have audited you must have audited she must have audited we must have audited you must have audited they must have audited
V-ing perfect
I must have been auditing you must have been auditing she must have been auditing we must have been auditing you must have been auditing they must have been auditing
Negation
Simple form
I must not audit you must not audit she must not audit we must not audit you must not audit they must not audit
V-ing form
I must not be auditing you must not be auditing she must not be auditing we must not be auditing you must not be auditing they must not be auditing
Perfect
I must not have audited you must not have audited she must not have audited we must not have audited you must not have audited they must not have audited
V-ing perfect
I must not have been auditing you must not have been auditing she must not have been auditing we must not have been auditing you must not have been auditing they must not have been auditing
Interrogative form
Simple form
must I audit? must you audit? must she audit? must we audit? must you audit? must they audit?
V-ing form
must I be auditing? must you be auditing? must she be auditing? must we be auditing? must you be auditing? must they be auditing?
Perfect
must I have audited? must you have audited? must she have audited? must we have audited? must you have audited? must they have audited?
V-ing perfect
must I have been auditing? must you have been auditing? must she have been auditing? must we have been auditing? must you have been auditing? must they have been auditing?
Interro-negative form
Simple form
must I not audit? must you not audit? must she not audit? must we not audit? must you not audit? must they not audit?
V-ing form
must I not be auditing? must you not be auditing? must she not be auditing? must we not be auditing? must you not be auditing? must they not be auditing?
Perfect
must I not have audited? must you not have audited? must she not have audited? must we not have audited? must you not have audited? must they not have audited?
V-ing perfect
must I not have been auditing? must you not have been auditing? must she not have been auditing? must we not have been auditing? must you not have been auditing? must they not have been auditing?