must kneecap
Regular verb: kneecap - kneecapped- kneecapped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must kneecap
you must kneecap
he must kneecap
we must kneecap
you must kneecap
they must kneecap 	I must be kneecapping
you must be kneecapping
he must be kneecapping
we must be kneecapping
you must be kneecapping
they must be kneecapping	I must have kneecapped
you must have kneecapped
he must have kneecapped
we must have kneecapped
you must have kneecapped
they must have kneecapped	I must have been kneecapping
you must have been kneecapping
he must have been kneecapping
we must have been kneecapping
you must have been kneecapping
they must have been kneecapping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not kneecap
you must not kneecap
he must not kneecap
we must not kneecap
you must not kneecap
they must not kneecap 	I must not be kneecapping
you must not be kneecapping
he must not be kneecapping
we must not be kneecapping
you must not be kneecapping
they must not be kneecapping	I must not have kneecapped
you must not have kneecapped
he must not have kneecapped
we must not have kneecapped
you must not have kneecapped
they must not have kneecapped	I must not have been kneecapping
you must not have been kneecapping
he must not have been kneecapping
we must not have been kneecapping
you must not have been kneecapping
they must not have been kneecapping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I kneecap?
must you kneecap?
must he kneecap?
must we kneecap?
must you kneecap?
must they kneecap? 	must I be kneecapping?
must you be kneecapping?
must he be kneecapping?
must we be kneecapping?
must you be kneecapping?
must they be kneecapping? 	must I have kneecapped?
must you have kneecapped?
must he have kneecapped?
must we have kneecapped?
must you have kneecapped?
must they have kneecapped? 	must I have been kneecapping?
must you have been kneecapping?
must he have been kneecapping?
must we have been kneecapping?
must you have been kneecapping?
must they have been kneecapping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not kneecap?
must you not kneecap?
must he not kneecap?
must we not kneecap?
must you not kneecap?
must they not kneecap? 	must I not be kneecapping?
must you not be kneecapping?
must he not be kneecapping?
must we not be kneecapping?
must you not be kneecapping?
must they not be kneecapping? 	must I not have kneecapped?
must you not have kneecapped?
must he not have kneecapped?
must we not have kneecapped?
must you not have kneecapped?
must they not have kneecapped? 	must I not have been kneecapping?
must you not have been kneecapping?
must he not have been kneecapping?
must we not have been kneecapping?
must you not have been kneecapping?
must they not have been kneecapping?