English verb conjugation
MUST CATNAP

Regular verb: catnap - catnapped - catnapped

Affirmation

Simple form	V-ing form
I must catnap you must catnap he must catnap we must catnap you must catnap they must catnap	I must be catnapping you must be catnapping he must be catnapping we must be catnapping you must be catnapping they must be catnapping
Perfect	V-ing perfect
I must have catnapped you must have catnapped he must have catnapped we must have catnapped you must have catnapped they must have catnapped	I must have been catnapping you must have been catnapping he must have been catnapping we must have been catnapping you must have been catnapping they must have been catnapping

Negation

Simple form	V-ing form
I must not catnap you must not catnap he must not catnap we must not catnap you must not catnap they must not catnap	I must not be catnapping you must not be catnapping he must not be catnapping we must not be catnapping you must not be catnapping they must not be catnapping
Perfect	V-ing perfect
I must not have catnapped you must not have catnapped he must not have catnapped we must not have catnapped you must not have catnapped they must not have catnapped	I must not have been catnapping you must not have been catnapping he must not have been catnapping we must not have been catnapping you must not have been catnapping they must not have been catnapping

Interrogative form

Simple form	V-ing form
must I catnap? must you catnap? must he catnap? must we catnap? must you catnap? must they catnap?	must I be catnapping? must you be catnapping? must he be catnapping? must we be catnapping? must you be catnapping? must they be catnapping?
Perfect	V-ing perfect
must I have catnapped? must you have catnapped? must he have catnapped? must we have catnapped? must you have catnapped? must they have catnapped?	must I have been catnapping? must you have been catnapping? must he have been catnapping? must we have been catnapping? must you have been catnapping? must they have been catnapping?

Interro-negative form

Simple form	V-ing form
must I not catnap? must you not catnap? must he not catnap? must we not catnap? must you not catnap? must they not catnap?	must I not be catnapping? must you not be catnapping? must he not be catnapping? must we not be catnapping? must you not be catnapping? must they not be catnapping?
Perfect	V-ing perfect
must I not have catnapped? must you not have catnapped? must he not have catnapped? must we not have catnapped? must you not have catnapped? must they not have catnapped?	must I not have been catnapping? must you not have been catnapping? must he not have been catnapping? must we not have been catnapping? must you not have been catnapping? must they not have been catnapping?