English verb conjugation
CAN JAB

Regular verb: jab - jabbed - jabbed

Affirmation

Simple form	V-ing form
I can jab you can jab he can jab we can jab you can jab they can jab	I can be jabbing you can be jabbing he can be jabbing we can be jabbing you can be jabbing they can be jabbing
Perfect	V-ing perfect
I can have jabbed you can have jabbed he can have jabbed we can have jabbed you can have jabbed they can have jabbed	I can have been jabbing you can have been jabbing he can have been jabbing we can have been jabbing you can have been jabbing they can have been jabbing

Negation

Simple form	V-ing form
I cannot jab you cannot jab he cannot jab we cannot jab you cannot jab they cannot jab	I cannot be jabbing you cannot be jabbing he cannot be jabbing we cannot be jabbing you cannot be jabbing they cannot be jabbing
Perfect	V-ing perfect
I cannot have jabbed you cannot have jabbed he cannot have jabbed we cannot have jabbed you cannot have jabbed they cannot have jabbed	I cannot have been jabbing you cannot have been jabbing he cannot have been jabbing we cannot have been jabbing you cannot have been jabbing they cannot have been jabbing

Interrogative form

Simple form	V-ing form
can I jab? can you jab? can he jab? can we jab? can you jab? can they jab?	can I be jabbing? can you be jabbing? can he be jabbing? can we be jabbing? can you be jabbing? can they be jabbing?
Perfect	V-ing perfect
can I have jabbed? can you have jabbed? can he have jabbed? can we have jabbed? can you have jabbed? can they have jabbed?	can I have been jabbing? can you have been jabbing? can he have been jabbing? can we have been jabbing? can you have been jabbing? can they have been jabbing?

Interro-negative form

Simple form	V-ing form
can I not jab? can you not jab? can he not jab? can we not jab? can you not jab? can they not jab?	can I not be jabbing? can you not be jabbing? can he not be jabbing? can we not be jabbing? can you not be jabbing? can they not be jabbing?
Perfect	V-ing perfect
can I not have jabbed? can you not have jabbed? can he not have jabbed? can we not have jabbed? can you not have jabbed? can they not have jabbed?	can I not have been jabbing? can you not have been jabbing? can he not have been jabbing? can we not have been jabbing? can you not have been jabbing? can they not have been jabbing?