English verb conjugation
MUST NAP

Regular verb: nap - napped - napped

Affirmation

Simple form	V-ing form
I must nap you must nap he must nap we must nap you must nap they must nap	I must be napping you must be napping he must be napping we must be napping you must be napping they must be napping
Perfect	V-ing perfect
I must have napped you must have napped he must have napped we must have napped you must have napped they must have napped	I must have been napping you must have been napping he must have been napping we must have been napping you must have been napping they must have been napping

Negation

Simple form	V-ing form
I must not nap you must not nap he must not nap we must not nap you must not nap they must not nap	I must not be napping you must not be napping he must not be napping we must not be napping you must not be napping they must not be napping
Perfect	V-ing perfect
I must not have napped you must not have napped he must not have napped we must not have napped you must not have napped they must not have napped	I must not have been napping you must not have been napping he must not have been napping we must not have been napping you must not have been napping they must not have been napping

Interrogative form

Simple form	V-ing form
must I nap? must you nap? must he nap? must we nap? must you nap? must they nap?	must I be napping? must you be napping? must he be napping? must we be napping? must you be napping? must they be napping?
Perfect	V-ing perfect
must I have napped? must you have napped? must he have napped? must we have napped? must you have napped? must they have napped?	must I have been napping? must you have been napping? must he have been napping? must we have been napping? must you have been napping? must they have been napping?

Interro-negative form

Simple form	V-ing form
must I not nap? must you not nap? must he not nap? must we not nap? must you not nap? must they not nap?	must I not be napping? must you not be napping? must he not be napping? must we not be napping? must you not be napping? must they not be napping?
Perfect	V-ing perfect
must I not have napped? must you not have napped? must he not have napped? must we not have napped? must you not have napped? must they not have napped?	must I not have been napping? must you not have been napping? must he not have been napping? must we not have been napping? must you not have been napping? must they not have been napping?