English verb conjugation
CAN ROB

Regular verb: rob - robbed - robbed

Affirmation

Simple form	V-ing form
I can rob you can rob he can rob we can rob you can rob they can rob	I can be robbing you can be robbing he can be robbing we can be robbing you can be robbing they can be robbing
Perfect	V-ing perfect
I can have robbed you can have robbed he can have robbed we can have robbed you can have robbed they can have robbed	I can have been robbing you can have been robbing he can have been robbing we can have been robbing you can have been robbing they can have been robbing

Negation

Simple form	V-ing form
I can't rob you can't rob he can't rob we can't rob you can't rob they can't rob	I can't be robbing you can't be robbing he can't be robbing we can't be robbing you can't be robbing they can't be robbing
Perfect	V-ing perfect
I can't have robbed you can't have robbed he can't have robbed we can't have robbed you can't have robbed they can't have robbed	I can't have been robbing you can't have been robbing he can't have been robbing we can't have been robbing you can't have been robbing they can't have been robbing

Interrogative form

Simple form	V-ing form
can I rob? can you rob? can he rob? can we rob? can you rob? can they rob?	can I be robbing? can you be robbing? can he be robbing? can we be robbing? can you be robbing? can they be robbing?
Perfect	V-ing perfect
can I have robbed? can you have robbed? can he have robbed? can we have robbed? can you have robbed? can they have robbed?	can I have been robbing? can you have been robbing? can he have been robbing? can we have been robbing? can you have been robbing? can they have been robbing?

Interro-negative form

Simple form	V-ing form
can't I rob? can't you rob? can't he rob? can't we rob? can't you rob? can't they rob?	can't I be robbing? can't you be robbing? can't he be robbing? can't we be robbing? can't you be robbing? can't they be robbing?
Perfect	V-ing perfect
can't I have robbed? can't you have robbed? can't he have robbed? can't we have robbed? can't you have robbed? can't they have robbed?	can't I have been robbing? can't you have been robbing? can't he have been robbing? can't we have been robbing? can't you have been robbing? can't they have been robbing?