English verb conjugation
MUST ZIG

Regular verb: zig - ziged - ziged

Affirmation

Simple form	V-ing form
I must zig you must zig she must zig we must zig you must zig they must zig	I must be ziging you must be ziging she 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 she 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 she 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 mustn't zig you mustn't zig she mustn't zig we mustn't zig you mustn't zig they mustn't zig	I mustn't be ziging you mustn't be ziging she mustn't be ziging we mustn't be ziging you mustn't be ziging they mustn't be ziging
Perfect	V-ing perfect
I mustn't have ziged you mustn't have ziged she mustn't have ziged we mustn't have ziged you mustn't have ziged they mustn't have ziged	I mustn't have been ziging you mustn't have been ziging she mustn't have been ziging we mustn't have been ziging you mustn't have been ziging they mustn't have been ziging

Interrogative form

Simple form	V-ing form
must I zig? must you zig? must she zig? must we zig? must you zig? must they zig?	must I be ziging? must you be ziging? must she 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 she 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 she 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
mustn't I zig? mustn't you zig? mustn't she zig? mustn't we zig? mustn't you zig? mustn't they zig?	mustn't I be ziging? mustn't you be ziging? mustn't she be ziging? mustn't we be ziging? mustn't you be ziging? mustn't they be ziging?
Perfect	V-ing perfect
mustn't I have ziged? mustn't you have ziged? mustn't she have ziged? mustn't we have ziged? mustn't you have ziged? mustn't they have ziged?	mustn't I have been ziging? mustn't you have been ziging? mustn't she have been ziging? mustn't we have been ziging? mustn't you have been ziging? mustn't they have been ziging?