English verb conjugation
MUST NAP

Regular verb: nap - napped - napped

Affirmation

Simple form	V-ing form
I must nap you must nap she must nap we must nap you must nap they must nap	I must be napping you must be napping she 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 she 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 she 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 mustn't nap you mustn't nap she mustn't nap we mustn't nap you mustn't nap they mustn't nap	I mustn't be napping you mustn't be napping she mustn't be napping we mustn't be napping you mustn't be napping they mustn't be napping
Perfect	V-ing perfect
I mustn't have napped you mustn't have napped she mustn't have napped we mustn't have napped you mustn't have napped they mustn't have napped	I mustn't have been napping you mustn't have been napping she mustn't have been napping we mustn't have been napping you mustn't have been napping they mustn't have been napping

Interrogative form

Simple form	V-ing form
must I nap? must you nap? must she nap? must we nap? must you nap? must they nap?	must I be napping? must you be napping? must she 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 she 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 she 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
mustn't I nap? mustn't you nap? mustn't she nap? mustn't we nap? mustn't you nap? mustn't they nap?	mustn't I be napping? mustn't you be napping? mustn't she be napping? mustn't we be napping? mustn't you be napping? mustn't they be napping?
Perfect	V-ing perfect
mustn't I have napped? mustn't you have napped? mustn't she have napped? mustn't we have napped? mustn't you have napped? mustn't they have napped?	mustn't I have been napping? mustn't you have been napping? mustn't she have been napping? mustn't we have been napping? mustn't you have been napping? mustn't they have been napping?