English verb conjugation
MUST WATCH

Regular verb: watch - watched - watched

Affirmation

Simple form	V-ing form
I must watch you must watch he must watch we must watch you must watch they must watch	I must be watching you must be watching he must be watching we must be watching you must be watching they must be watching
Perfect	V-ing perfect
I must have watched you must have watched he must have watched we must have watched you must have watched they must have watched	I must have been watching you must have been watching he must have been watching we must have been watching you must have been watching they must have been watching

Negation

Simple form	V-ing form
I must not watch you must not watch he must not watch we must not watch you must not watch they must not watch	I must not be watching you must not be watching he must not be watching we must not be watching you must not be watching they must not be watching
Perfect	V-ing perfect
I must not have watched you must not have watched he must not have watched we must not have watched you must not have watched they must not have watched	I must not have been watching you must not have been watching he must not have been watching we must not have been watching you must not have been watching they must not have been watching

Interrogative form

Simple form	V-ing form
must I watch? must you watch? must he watch? must we watch? must you watch? must they watch?	must I be watching? must you be watching? must he be watching? must we be watching? must you be watching? must they be watching?
Perfect	V-ing perfect
must I have watched? must you have watched? must he have watched? must we have watched? must you have watched? must they have watched?	must I have been watching? must you have been watching? must he have been watching? must we have been watching? must you have been watching? must they have been watching?

Interro-negative form

Simple form	V-ing form
must I not watch? must you not watch? must he not watch? must we not watch? must you not watch? must they not watch?	must I not be watching? must you not be watching? must he not be watching? must we not be watching? must you not be watching? must they not be watching?
Perfect	V-ing perfect
must I not have watched? must you not have watched? must he not have watched? must we not have watched? must you not have watched? must they not have watched?	must I not have been watching? must you not have been watching? must he not have been watching? must we not have been watching? must you not have been watching? must they not have been watching?