English verb conjugation
MUST JAB

Regular verb: jab - jabbed - jabbed

Affirmation

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

Negation

Simple form	V-ing form
I must not jab you must not jab she must not jab we must not jab you must not jab they must not jab	I must not be jabbing you must not be jabbing she must not be jabbing we must not be jabbing you must not be jabbing they must not be jabbing
Perfect	V-ing perfect
I must not have jabbed you must not have jabbed she must not have jabbed we must not have jabbed you must not have jabbed they must not have jabbed	I must not have been jabbing you must not have been jabbing she must not have been jabbing we must not have been jabbing you must not have been jabbing they must not have been jabbing

Interrogative form

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

Interro-negative form

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