must merge
Regular verb: merge - merged- merged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must merge
you must merge
he must merge
we must merge
you must merge
they must merge 	I must be merging
you must be merging
he must be merging
we must be merging
you must be merging
they must be merging	I must have merged
you must have merged
he must have merged
we must have merged
you must have merged
they must have merged	I must have been merging
you must have been merging
he must have been merging
we must have been merging
you must have been merging
they must have been merging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't merge
you mustn't merge
he mustn't merge
we mustn't merge
you mustn't merge
they mustn't merge 	I mustn't be merging
you mustn't be merging
he mustn't be merging
we mustn't be merging
you mustn't be merging
they mustn't be merging	I mustn't have merged
you mustn't have merged
he mustn't have merged
we mustn't have merged
you mustn't have merged
they mustn't have merged	I mustn't have been merging
you mustn't have been merging
he mustn't have been merging
we mustn't have been merging
you mustn't have been merging
they mustn't have been merging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I merge?
must you merge?
must he merge?
must we merge?
must you merge?
must they merge? 	must I be merging?
must you be merging?
must he be merging?
must we be merging?
must you be merging?
must they be merging? 	must I have merged?
must you have merged?
must he have merged?
must we have merged?
must you have merged?
must they have merged? 	must I have been merging?
must you have been merging?
must he have been merging?
must we have been merging?
must you have been merging?
must they have been merging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I merge?
mustn't you merge?
mustn't he merge?
mustn't we merge?
mustn't you merge?
mustn't they merge? 	mustn't I be merging?
mustn't you be merging?
mustn't he be merging?
mustn't we be merging?
mustn't you be merging?
mustn't they be merging? 	mustn't I have merged?
mustn't you have merged?
mustn't he have merged?
mustn't we have merged?
mustn't you have merged?
mustn't they have merged? 	mustn't I have been merging?
mustn't you have been merging?
mustn't he have been merging?
mustn't we have been merging?
mustn't you have been merging?
mustn't they have been merging?