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 can't jab you can't jab he can't jab we can't jab you can't jab they can't jab	I can't be jabbing you can't be jabbing he can't be jabbing we can't be jabbing you can't be jabbing they can't be jabbing
Perfect	V-ing perfect
I can't have jabbed you can't have jabbed he can't have jabbed we can't have jabbed you can't have jabbed they can't have jabbed	I can't have been jabbing you can't have been jabbing he can't have been jabbing we can't have been jabbing you can't have been jabbing they can't 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't I jab? can't you jab? can't he jab? can't we jab? can't you jab? can't they jab?	can't I be jabbing? can't you be jabbing? can't he be jabbing? can't we be jabbing? can't you be jabbing? can't they be jabbing?
Perfect	V-ing perfect
can't I have jabbed? can't you have jabbed? can't he have jabbed? can't we have jabbed? can't you have jabbed? can't they have jabbed?	can't I have been jabbing? can't you have been jabbing? can't he have been jabbing? can't we have been jabbing? can't you have been jabbing? can't they have been jabbing?