may kneecap
Regular verb: kneecap - kneecapped- kneecapped

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't kneecap
you mayn't kneecap
he mayn't kneecap
we mayn't kneecap
you mayn't kneecap
they mayn't kneecap 	I mayn't be kneecapping
you mayn't be kneecapping
he mayn't be kneecapping
we mayn't be kneecapping
you mayn't be kneecapping
they mayn't be kneecapping	I mayn't have kneecapped
you mayn't have kneecapped
he mayn't have kneecapped
we mayn't have kneecapped
you mayn't have kneecapped
they mayn't have kneecapped	I mayn't have been kneecapping
you mayn't have been kneecapping
he mayn't have been kneecapping
we mayn't have been kneecapping
you mayn't have been kneecapping
they mayn't have been kneecapping	

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

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