must gin
Regular verb: gin - gined- gined

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must gin
you must gin
he must gin
we must gin
you must gin
they must gin 	I must be gining
you must be gining
he must be gining
we must be gining
you must be gining
they must be gining	I must have gined
you must have gined
he must have gined
we must have gined
you must have gined
they must have gined	I must have been gining
you must have been gining
he must have been gining
we must have been gining
you must have been gining
they must have been gining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't gin
you mustn't gin
he mustn't gin
we mustn't gin
you mustn't gin
they mustn't gin 	I mustn't be gining
you mustn't be gining
he mustn't be gining
we mustn't be gining
you mustn't be gining
they mustn't be gining	I mustn't have gined
you mustn't have gined
he mustn't have gined
we mustn't have gined
you mustn't have gined
they mustn't have gined	I mustn't have been gining
you mustn't have been gining
he mustn't have been gining
we mustn't have been gining
you mustn't have been gining
they mustn't have been gining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I gin?
must you gin?
must he gin?
must we gin?
must you gin?
must they gin? 	must I be gining?
must you be gining?
must he be gining?
must we be gining?
must you be gining?
must they be gining? 	must I have gined?
must you have gined?
must he have gined?
must we have gined?
must you have gined?
must they have gined? 	must I have been gining?
must you have been gining?
must he have been gining?
must we have been gining?
must you have been gining?
must they have been gining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I gin?
mustn't you gin?
mustn't he gin?
mustn't we gin?
mustn't you gin?
mustn't they gin? 	mustn't I be gining?
mustn't you be gining?
mustn't he be gining?
mustn't we be gining?
mustn't you be gining?
mustn't they be gining? 	mustn't I have gined?
mustn't you have gined?
mustn't he have gined?
mustn't we have gined?
mustn't you have gined?
mustn't they have gined? 	mustn't I have been gining?
mustn't you have been gining?
mustn't he have been gining?
mustn't we have been gining?
mustn't you have been gining?
mustn't they have been gining?