English verb conjugation
MUST BLACKJACK

Regular verb: blackjack - blackjacked - blackjacked

Affirmation

Simple form	V-ing form
I must blackjack you must blackjack he must blackjack we must blackjack you must blackjack they must blackjack	I must be blackjacking you must be blackjacking he must be blackjacking we must be blackjacking you must be blackjacking they must be blackjacking
Perfect	V-ing perfect
I must have blackjacked you must have blackjacked he must have blackjacked we must have blackjacked you must have blackjacked they must have blackjacked	I must have been blackjacking you must have been blackjacking he must have been blackjacking we must have been blackjacking you must have been blackjacking they must have been blackjacking

Negation

Simple form	V-ing form
I must not blackjack you must not blackjack he must not blackjack we must not blackjack you must not blackjack they must not blackjack	I must not be blackjacking you must not be blackjacking he must not be blackjacking we must not be blackjacking you must not be blackjacking they must not be blackjacking
Perfect	V-ing perfect
I must not have blackjacked you must not have blackjacked he must not have blackjacked we must not have blackjacked you must not have blackjacked they must not have blackjacked	I must not have been blackjacking you must not have been blackjacking he must not have been blackjacking we must not have been blackjacking you must not have been blackjacking they must not have been blackjacking

Interrogative form

Simple form	V-ing form
must I blackjack? must you blackjack? must he blackjack? must we blackjack? must you blackjack? must they blackjack?	must I be blackjacking? must you be blackjacking? must he be blackjacking? must we be blackjacking? must you be blackjacking? must they be blackjacking?
Perfect	V-ing perfect
must I have blackjacked? must you have blackjacked? must he have blackjacked? must we have blackjacked? must you have blackjacked? must they have blackjacked?	must I have been blackjacking? must you have been blackjacking? must he have been blackjacking? must we have been blackjacking? must you have been blackjacking? must they have been blackjacking?

Interro-negative form

Simple form	V-ing form
must I not blackjack? must you not blackjack? must he not blackjack? must we not blackjack? must you not blackjack? must they not blackjack?	must I not be blackjacking? must you not be blackjacking? must he not be blackjacking? must we not be blackjacking? must you not be blackjacking? must they not be blackjacking?
Perfect	V-ing perfect
must I not have blackjacked? must you not have blackjacked? must he not have blackjacked? must we not have blackjacked? must you not have blackjacked? must they not have blackjacked?	must I not have been blackjacking? must you not have been blackjacking? must he not have been blackjacking? must we not have been blackjacking? must you not have been blackjacking? must they not have been blackjacking?