English verb conjugation
MUST OBEY

Regular verb: obey - obeyed - obeyed

Affirmation

Simple form	V-ing form
I must obey you must obey he must obey we must obey you must obey they must obey	I must be obeying you must be obeying he must be obeying we must be obeying you must be obeying they must be obeying
Perfect	V-ing perfect
I must have obeyed you must have obeyed he must have obeyed we must have obeyed you must have obeyed they must have obeyed	I must have been obeying you must have been obeying he must have been obeying we must have been obeying you must have been obeying they must have been obeying

Negation

Simple form	V-ing form
I must not obey you must not obey he must not obey we must not obey you must not obey they must not obey	I must not be obeying you must not be obeying he must not be obeying we must not be obeying you must not be obeying they must not be obeying
Perfect	V-ing perfect
I must not have obeyed you must not have obeyed he must not have obeyed we must not have obeyed you must not have obeyed they must not have obeyed	I must not have been obeying you must not have been obeying he must not have been obeying we must not have been obeying you must not have been obeying they must not have been obeying

Interrogative form

Simple form	V-ing form
must I obey? must you obey? must he obey? must we obey? must you obey? must they obey?	must I be obeying? must you be obeying? must he be obeying? must we be obeying? must you be obeying? must they be obeying?
Perfect	V-ing perfect
must I have obeyed? must you have obeyed? must he have obeyed? must we have obeyed? must you have obeyed? must they have obeyed?	must I have been obeying? must you have been obeying? must he have been obeying? must we have been obeying? must you have been obeying? must they have been obeying?

Interro-negative form

Simple form	V-ing form
must I not obey? must you not obey? must he not obey? must we not obey? must you not obey? must they not obey?	must I not be obeying? must you not be obeying? must he not be obeying? must we not be obeying? must you not be obeying? must they not be obeying?
Perfect	V-ing perfect
must I not have obeyed? must you not have obeyed? must he not have obeyed? must we not have obeyed? must you not have obeyed? must they not have obeyed?	must I not have been obeying? must you not have been obeying? must he not have been obeying? must we not have been obeying? must you not have been obeying? must they not have been obeying?