must migrate
Regular verb: migrate - migrated- migrated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must migrate
you must migrate
she must migrate
we must migrate
you must migrate
they must migrate 	I must be migrating
you must be migrating
she must be migrating
we must be migrating
you must be migrating
they must be migrating	I must have migrated
you must have migrated
she must have migrated
we must have migrated
you must have migrated
they must have migrated	I must have been migrating
you must have been migrating
she must have been migrating
we must have been migrating
you must have been migrating
they must have been migrating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't migrate
you mustn't migrate
she mustn't migrate
we mustn't migrate
you mustn't migrate
they mustn't migrate 	I mustn't be migrating
you mustn't be migrating
she mustn't be migrating
we mustn't be migrating
you mustn't be migrating
they mustn't be migrating	I mustn't have migrated
you mustn't have migrated
she mustn't have migrated
we mustn't have migrated
you mustn't have migrated
they mustn't have migrated	I mustn't have been migrating
you mustn't have been migrating
she mustn't have been migrating
we mustn't have been migrating
you mustn't have been migrating
they mustn't have been migrating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I migrate?
must you migrate?
must she migrate?
must we migrate?
must you migrate?
must they migrate? 	must I be migrating?
must you be migrating?
must she be migrating?
must we be migrating?
must you be migrating?
must they be migrating? 	must I have migrated?
must you have migrated?
must she have migrated?
must we have migrated?
must you have migrated?
must they have migrated? 	must I have been migrating?
must you have been migrating?
must she have been migrating?
must we have been migrating?
must you have been migrating?
must they have been migrating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I migrate?
mustn't you migrate?
mustn't she migrate?
mustn't we migrate?
mustn't you migrate?
mustn't they migrate? 	mustn't I be migrating?
mustn't you be migrating?
mustn't she be migrating?
mustn't we be migrating?
mustn't you be migrating?
mustn't they be migrating? 	mustn't I have migrated?
mustn't you have migrated?
mustn't she have migrated?
mustn't we have migrated?
mustn't you have migrated?
mustn't they have migrated? 	mustn't I have been migrating?
mustn't you have been migrating?
mustn't she have been migrating?
mustn't we have been migrating?
mustn't you have been migrating?
mustn't they have been migrating?