must nap
Regular verb: nap - napped- napped

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