English verb conjugation
MUST JERK

Regular verb: jerk - jerked - jerked

Affirmation

Simple form	V-ing form
I must jerk you must jerk he must jerk we must jerk you must jerk they must jerk	I must be jerking you must be jerking he must be jerking we must be jerking you must be jerking they must be jerking
Perfect	V-ing perfect
I must have jerked you must have jerked he must have jerked we must have jerked you must have jerked they must have jerked	I must have been jerking you must have been jerking he must have been jerking we must have been jerking you must have been jerking they must have been jerking

Negation

Simple form	V-ing form
I must not jerk you must not jerk he must not jerk we must not jerk you must not jerk they must not jerk	I must not be jerking you must not be jerking he must not be jerking we must not be jerking you must not be jerking they must not be jerking
Perfect	V-ing perfect
I must not have jerked you must not have jerked he must not have jerked we must not have jerked you must not have jerked they must not have jerked	I must not have been jerking you must not have been jerking he must not have been jerking we must not have been jerking you must not have been jerking they must not have been jerking

Interrogative form

Simple form	V-ing form
must I jerk? must you jerk? must he jerk? must we jerk? must you jerk? must they jerk?	must I be jerking? must you be jerking? must he be jerking? must we be jerking? must you be jerking? must they be jerking?
Perfect	V-ing perfect
must I have jerked? must you have jerked? must he have jerked? must we have jerked? must you have jerked? must they have jerked?	must I have been jerking? must you have been jerking? must he have been jerking? must we have been jerking? must you have been jerking? must they have been jerking?

Interro-negative form

Simple form	V-ing form
must I not jerk? must you not jerk? must he not jerk? must we not jerk? must you not jerk? must they not jerk?	must I not be jerking? must you not be jerking? must he not be jerking? must we not be jerking? must you not be jerking? must they not be jerking?
Perfect	V-ing perfect
must I not have jerked? must you not have jerked? must he not have jerked? must we not have jerked? must you not have jerked? must they not have jerked?	must I not have been jerking? must you not have been jerking? must he not have been jerking? must we not have been jerking? must you not have been jerking? must they not have been jerking?