I must audit you must audit he must audit we must audit you must audit they must audit
V-ing form
I must be auditing you must be auditing he must be auditing we must be auditing you must be auditing they must be auditing
Perfect
I must have audited you must have audited he 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 he 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 he 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 he 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 he 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 he 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 he audit? must we audit? must you audit? must they audit?
V-ing form
must I be auditing? must you be auditing? must he be auditing? must we be auditing? must you be auditing? must they be auditing?
Perfect
must I have audited? must you have audited? must he 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 he 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 he 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 he 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 he 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 he not have been auditing? must we not have been auditing? must you not have been auditing? must they not have been auditing?