I can kneecap you can kneecap she can kneecap we can kneecap you can kneecap they can kneecap
V-ing form
I can be kneecapping you can be kneecapping she can be kneecapping we can be kneecapping you can be kneecapping they can be kneecapping
Perfect
I can have kneecapped you can have kneecapped she can have kneecapped we can have kneecapped you can have kneecapped they can have kneecapped
V-ing perfect
I can have been kneecapping you can have been kneecapping she can have been kneecapping we can have been kneecapping you can have been kneecapping they can have been kneecapping
Negation
Simple form
I can't kneecap you can't kneecap she can't kneecap we can't kneecap you can't kneecap they can't kneecap
V-ing form
I can't be kneecapping you can't be kneecapping she can't be kneecapping we can't be kneecapping you can't be kneecapping they can't be kneecapping
Perfect
I can't have kneecapped you can't have kneecapped she can't have kneecapped we can't have kneecapped you can't have kneecapped they can't have kneecapped
V-ing perfect
I can't have been kneecapping you can't have been kneecapping she can't have been kneecapping we can't have been kneecapping you can't have been kneecapping they can't have been kneecapping
Interrogative form
Simple form
can I kneecap? can you kneecap? can she kneecap? can we kneecap? can you kneecap? can they kneecap?
V-ing form
can I be kneecapping? can you be kneecapping? can she be kneecapping? can we be kneecapping? can you be kneecapping? can they be kneecapping?
Perfect
can I have kneecapped? can you have kneecapped? can she have kneecapped? can we have kneecapped? can you have kneecapped? can they have kneecapped?
V-ing perfect
can I have been kneecapping? can you have been kneecapping? can she have been kneecapping? can we have been kneecapping? can you have been kneecapping? can they have been kneecapping?
Interro-negative form
Simple form
can't I kneecap? can't you kneecap? can't she kneecap? can't we kneecap? can't you kneecap? can't they kneecap?
V-ing form
can't I be kneecapping? can't you be kneecapping? can't she be kneecapping? can't we be kneecapping? can't you be kneecapping? can't they be kneecapping?
Perfect
can't I have kneecapped? can't you have kneecapped? can't she have kneecapped? can't we have kneecapped? can't you have kneecapped? can't they have kneecapped?
V-ing perfect
can't I have been kneecapping? can't you have been kneecapping? can't she have been kneecapping? can't we have been kneecapping? can't you have been kneecapping? can't they have been kneecapping?