I must revert you must revert he must revert we must revert you must revert they must revert
V-ing form
I must be reverting you must be reverting he must be reverting we must be reverting you must be reverting they must be reverting
Perfect
I must have reverted you must have reverted he must have reverted we must have reverted you must have reverted they must have reverted
V-ing perfect
I must have been reverting you must have been reverting he must have been reverting we must have been reverting you must have been reverting they must have been reverting
Negation
Simple form
I must not revert you must not revert he must not revert we must not revert you must not revert they must not revert
V-ing form
I must not be reverting you must not be reverting he must not be reverting we must not be reverting you must not be reverting they must not be reverting
Perfect
I must not have reverted you must not have reverted he must not have reverted we must not have reverted you must not have reverted they must not have reverted
V-ing perfect
I must not have been reverting you must not have been reverting he must not have been reverting we must not have been reverting you must not have been reverting they must not have been reverting
Interrogative form
Simple form
must I revert? must you revert? must he revert? must we revert? must you revert? must they revert?
V-ing form
must I be reverting? must you be reverting? must he be reverting? must we be reverting? must you be reverting? must they be reverting?
Perfect
must I have reverted? must you have reverted? must he have reverted? must we have reverted? must you have reverted? must they have reverted?
V-ing perfect
must I have been reverting? must you have been reverting? must he have been reverting? must we have been reverting? must you have been reverting? must they have been reverting?
Interro-negative form
Simple form
must I not revert? must you not revert? must he not revert? must we not revert? must you not revert? must they not revert?
V-ing form
must I not be reverting? must you not be reverting? must he not be reverting? must we not be reverting? must you not be reverting? must they not be reverting?
Perfect
must I not have reverted? must you not have reverted? must he not have reverted? must we not have reverted? must you not have reverted? must they not have reverted?
V-ing perfect
must I not have been reverting? must you not have been reverting? must he not have been reverting? must we not have been reverting? must you not have been reverting? must they not have been reverting?