English verb conjugation
MUST WISECRACK

Regular verb: wisecrack - wisecracked - wisecracked

Affirmation

Simple form	V-ing form
I must wisecrack you must wisecrack he must wisecrack we must wisecrack you must wisecrack they must wisecrack	I must be wisecracking you must be wisecracking he must be wisecracking we must be wisecracking you must be wisecracking they must be wisecracking
Perfect	V-ing perfect
I must have wisecracked you must have wisecracked he must have wisecracked we must have wisecracked you must have wisecracked they must have wisecracked	I must have been wisecracking you must have been wisecracking he must have been wisecracking we must have been wisecracking you must have been wisecracking they must have been wisecracking

Negation

Simple form	V-ing form
I mustn't wisecrack you mustn't wisecrack he mustn't wisecrack we mustn't wisecrack you mustn't wisecrack they mustn't wisecrack	I mustn't be wisecracking you mustn't be wisecracking he mustn't be wisecracking we mustn't be wisecracking you mustn't be wisecracking they mustn't be wisecracking
Perfect	V-ing perfect
I mustn't have wisecracked you mustn't have wisecracked he mustn't have wisecracked we mustn't have wisecracked you mustn't have wisecracked they mustn't have wisecracked	I mustn't have been wisecracking you mustn't have been wisecracking he mustn't have been wisecracking we mustn't have been wisecracking you mustn't have been wisecracking they mustn't have been wisecracking

Interrogative form

Simple form	V-ing form
must I wisecrack? must you wisecrack? must he wisecrack? must we wisecrack? must you wisecrack? must they wisecrack?	must I be wisecracking? must you be wisecracking? must he be wisecracking? must we be wisecracking? must you be wisecracking? must they be wisecracking?
Perfect	V-ing perfect
must I have wisecracked? must you have wisecracked? must he have wisecracked? must we have wisecracked? must you have wisecracked? must they have wisecracked?	must I have been wisecracking? must you have been wisecracking? must he have been wisecracking? must we have been wisecracking? must you have been wisecracking? must they have been wisecracking?

Interro-negative form

Simple form	V-ing form
mustn't I wisecrack? mustn't you wisecrack? mustn't he wisecrack? mustn't we wisecrack? mustn't you wisecrack? mustn't they wisecrack?	mustn't I be wisecracking? mustn't you be wisecracking? mustn't he be wisecracking? mustn't we be wisecracking? mustn't you be wisecracking? mustn't they be wisecracking?
Perfect	V-ing perfect
mustn't I have wisecracked? mustn't you have wisecracked? mustn't he have wisecracked? mustn't we have wisecracked? mustn't you have wisecracked? mustn't they have wisecracked?	mustn't I have been wisecracking? mustn't you have been wisecracking? mustn't he have been wisecracking? mustn't we have been wisecracking? mustn't you have been wisecracking? mustn't they have been wisecracking?