English verb conjugation
MUST SOUTH

Regular verb: south - southed - southed

Affirmation

Simple form	V-ing form
I must south you must south he must south we must south you must south they must south	I must be southing you must be southing he must be southing we must be southing you must be southing they must be southing
Perfect	V-ing perfect
I must have southed you must have southed he must have southed we must have southed you must have southed they must have southed	I must have been southing you must have been southing he must have been southing we must have been southing you must have been southing they must have been southing

Negation

Simple form	V-ing form
I must not south you must not south he must not south we must not south you must not south they must not south	I must not be southing you must not be southing he must not be southing we must not be southing you must not be southing they must not be southing
Perfect	V-ing perfect
I must not have southed you must not have southed he must not have southed we must not have southed you must not have southed they must not have southed	I must not have been southing you must not have been southing he must not have been southing we must not have been southing you must not have been southing they must not have been southing

Interrogative form

Simple form	V-ing form
must I south? must you south? must he south? must we south? must you south? must they south?	must I be southing? must you be southing? must he be southing? must we be southing? must you be southing? must they be southing?
Perfect	V-ing perfect
must I have southed? must you have southed? must he have southed? must we have southed? must you have southed? must they have southed?	must I have been southing? must you have been southing? must he have been southing? must we have been southing? must you have been southing? must they have been southing?

Interro-negative form

Simple form	V-ing form
must I not south? must you not south? must he not south? must we not south? must you not south? must they not south?	must I not be southing? must you not be southing? must he not be southing? must we not be southing? must you not be southing? must they not be southing?
Perfect	V-ing perfect
must I not have southed? must you not have southed? must he not have southed? must we not have southed? must you not have southed? must they not have southed?	must I not have been southing? must you not have been southing? must he not have been southing? must we not have been southing? must you not have been southing? must they not have been southing?