English verb conjugation
MUST YANK

Regular verb: yank - yanked - yanked

Affirmation

Simple form	V-ing form
I must yank you must yank he must yank we must yank you must yank they must yank	I must be yanking you must be yanking he must be yanking we must be yanking you must be yanking they must be yanking
Perfect	V-ing perfect
I must have yanked you must have yanked he must have yanked we must have yanked you must have yanked they must have yanked	I must have been yanking you must have been yanking he must have been yanking we must have been yanking you must have been yanking they must have been yanking

Negation

Simple form	V-ing form
I must not yank you must not yank he must not yank we must not yank you must not yank they must not yank	I must not be yanking you must not be yanking he must not be yanking we must not be yanking you must not be yanking they must not be yanking
Perfect	V-ing perfect
I must not have yanked you must not have yanked he must not have yanked we must not have yanked you must not have yanked they must not have yanked	I must not have been yanking you must not have been yanking he must not have been yanking we must not have been yanking you must not have been yanking they must not have been yanking

Interrogative form

Simple form	V-ing form
must I yank? must you yank? must he yank? must we yank? must you yank? must they yank?	must I be yanking? must you be yanking? must he be yanking? must we be yanking? must you be yanking? must they be yanking?
Perfect	V-ing perfect
must I have yanked? must you have yanked? must he have yanked? must we have yanked? must you have yanked? must they have yanked?	must I have been yanking? must you have been yanking? must he have been yanking? must we have been yanking? must you have been yanking? must they have been yanking?

Interro-negative form

Simple form	V-ing form
must I not yank? must you not yank? must he not yank? must we not yank? must you not yank? must they not yank?	must I not be yanking? must you not be yanking? must he not be yanking? must we not be yanking? must you not be yanking? must they not be yanking?
Perfect	V-ing perfect
must I not have yanked? must you not have yanked? must he not have yanked? must we not have yanked? must you not have yanked? must they not have yanked?	must I not have been yanking? must you not have been yanking? must he not have been yanking? must we not have been yanking? must you not have been yanking? must they not have been yanking?