should rob
Regular verb: rob - robbed- robbed

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not rob
you should not rob
he should not rob
we should not rob
you should not rob
they should not rob 	I should not be robbing
you should not be robbing
he should not be robbing
we should not be robbing
you should not be robbing
they should not be robbing	I should not have robbed
you should not have robbed
he should not have robbed
we should not have robbed
you should not have robbed
they should not have robbed	I should not have been robbing
you should not have been robbing
he should not have been robbing
we should not have been robbing
you should not have been robbing
they should not have been robbing	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not rob?
should you not rob?
should he not rob?
should we not rob?
should you not rob?
should they not rob? 	should I not be robbing?
should you not be robbing?
should he not be robbing?
should we not be robbing?
should you not be robbing?
should they not be robbing? 	should I not have robbed?
should you not have robbed?
should he not have robbed?
should we not have robbed?
should you not have robbed?
should they not have robbed? 	should I not have been robbing?
should you not have been robbing?
should he not have been robbing?
should we not have been robbing?
should you not have been robbing?
should they not have been robbing?