English verb conjugation
MUST SUP

Regular verb: sup - supped - supped

Affirmation

Simple form	V-ing form
I must sup you must sup he must sup we must sup you must sup they must sup	I must be supping you must be supping he must be supping we must be supping you must be supping they must be supping
Perfect	V-ing perfect
I must have supped you must have supped he must have supped we must have supped you must have supped they must have supped	I must have been supping you must have been supping he must have been supping we must have been supping you must have been supping they must have been supping

Negation

Simple form	V-ing form
I must not sup you must not sup he must not sup we must not sup you must not sup they must not sup	I must not be supping you must not be supping he must not be supping we must not be supping you must not be supping they must not be supping
Perfect	V-ing perfect
I must not have supped you must not have supped he must not have supped we must not have supped you must not have supped they must not have supped	I must not have been supping you must not have been supping he must not have been supping we must not have been supping you must not have been supping they must not have been supping

Interrogative form

Simple form	V-ing form
must I sup? must you sup? must he sup? must we sup? must you sup? must they sup?	must I be supping? must you be supping? must he be supping? must we be supping? must you be supping? must they be supping?
Perfect	V-ing perfect
must I have supped? must you have supped? must he have supped? must we have supped? must you have supped? must they have supped?	must I have been supping? must you have been supping? must he have been supping? must we have been supping? must you have been supping? must they have been supping?

Interro-negative form

Simple form	V-ing form
must I not sup? must you not sup? must he not sup? must we not sup? must you not sup? must they not sup?	must I not be supping? must you not be supping? must he not be supping? must we not be supping? must you not be supping? must they not be supping?
Perfect	V-ing perfect
must I not have supped? must you not have supped? must he not have supped? must we not have supped? must you not have supped? must they not have supped?	must I not have been supping? must you not have been supping? must he not have been supping? must we not have been supping? must you not have been supping? must they not have been supping?