must zig
Regular verb: zig - ziged- ziged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?