English verb conjugation
MUST ZIG

Regular verb: zig - ziged - ziged

Affirmation

Simple form	V-ing form
I must zig you must zig he must zig we must zig you must zig they must zig	I must be ziging you must be ziging he must be ziging we must be ziging you must be ziging they must be ziging
Perfect	V-ing perfect
I must have ziged you must have ziged he must have ziged we must have ziged you must have ziged they must have ziged	I must have been ziging you must have been ziging he must have been ziging we must have been ziging you must have been ziging they must have been ziging

Negation

Simple form	V-ing form
I must not zig you must not zig he must not zig we must not zig you must not zig they must not zig	I must not be ziging you must not be ziging he must not be ziging we must not be ziging you must not be ziging they must not be ziging
Perfect	V-ing perfect
I must not have ziged you must not have ziged he must not have ziged we must not have ziged you must not have ziged they must not have ziged	I must not have been ziging you must not have been ziging he must not have been ziging we must not have been ziging you must not have been ziging they must not have been ziging

Interrogative form

Simple form	V-ing form
must I zig? must you zig? must he zig? must we zig? must you zig? must they zig?	must I be ziging? must you be ziging? must he be ziging? must we be ziging? must you be ziging? must they be ziging?
Perfect	V-ing perfect
must I have ziged? must you have ziged? must he have ziged? must we have ziged? must you have ziged? must they have ziged?	must I have been ziging? must you have been ziging? must he have been ziging? must we have been ziging? must you have been ziging? must they have been ziging?

Interro-negative form

Simple form	V-ing form
must I not zig? must you not zig? must he not zig? must we not zig? must you not zig? must they not zig?	must I not be ziging? must you not be ziging? must he not be ziging? must we not be ziging? must you not be ziging? must they not be ziging?
Perfect	V-ing perfect
must I not have ziged? must you not have ziged? must he not have ziged? must we not have ziged? must you not have ziged? must they not have ziged?	must I not have been ziging? must you not have been ziging? must he not have been ziging? must we not have been ziging? must you not have been ziging? must they not have been ziging?