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 mustn't obey you mustn't obey he mustn't obey we mustn't obey you mustn't obey they mustn't obey	I mustn't be obeying you mustn't be obeying he mustn't be obeying we mustn't be obeying you mustn't be obeying they mustn't be obeying
Perfect	V-ing perfect
I mustn't have obeyed you mustn't have obeyed he mustn't have obeyed we mustn't have obeyed you mustn't have obeyed they mustn't have obeyed	I mustn't have been obeying you mustn't have been obeying he mustn't have been obeying we mustn't have been obeying you mustn't have been obeying they mustn't 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
mustn't I obey? mustn't you obey? mustn't he obey? mustn't we obey? mustn't you obey? mustn't they obey?	mustn't I be obeying? mustn't you be obeying? mustn't he be obeying? mustn't we be obeying? mustn't you be obeying? mustn't they be obeying?
Perfect	V-ing perfect
mustn't I have obeyed? mustn't you have obeyed? mustn't he have obeyed? mustn't we have obeyed? mustn't you have obeyed? mustn't they have obeyed?	mustn't I have been obeying? mustn't you have been obeying? mustn't he have been obeying? mustn't we have been obeying? mustn't you have been obeying? mustn't they have been obeying?