must relearn
Regular verb: relearn - relearned- relearned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must relearn
you must relearn
he must relearn
we must relearn
you must relearn
they must relearn 	I must be relearning
you must be relearning
he must be relearning
we must be relearning
you must be relearning
they must be relearning	I must have relearned
you must have relearned
he must have relearned
we must have relearned
you must have relearned
they must have relearned	I must have been relearning
you must have been relearning
he must have been relearning
we must have been relearning
you must have been relearning
they must have been relearning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't relearn
you mustn't relearn
he mustn't relearn
we mustn't relearn
you mustn't relearn
they mustn't relearn 	I mustn't be relearning
you mustn't be relearning
he mustn't be relearning
we mustn't be relearning
you mustn't be relearning
they mustn't be relearning	I mustn't have relearned
you mustn't have relearned
he mustn't have relearned
we mustn't have relearned
you mustn't have relearned
they mustn't have relearned	I mustn't have been relearning
you mustn't have been relearning
he mustn't have been relearning
we mustn't have been relearning
you mustn't have been relearning
they mustn't have been relearning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I relearn?
must you relearn?
must he relearn?
must we relearn?
must you relearn?
must they relearn? 	must I be relearning?
must you be relearning?
must he be relearning?
must we be relearning?
must you be relearning?
must they be relearning? 	must I have relearned?
must you have relearned?
must he have relearned?
must we have relearned?
must you have relearned?
must they have relearned? 	must I have been relearning?
must you have been relearning?
must he have been relearning?
must we have been relearning?
must you have been relearning?
must they have been relearning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I relearn?
mustn't you relearn?
mustn't he relearn?
mustn't we relearn?
mustn't you relearn?
mustn't they relearn? 	mustn't I be relearning?
mustn't you be relearning?
mustn't he be relearning?
mustn't we be relearning?
mustn't you be relearning?
mustn't they be relearning? 	mustn't I have relearned?
mustn't you have relearned?
mustn't he have relearned?
mustn't we have relearned?
mustn't you have relearned?
mustn't they have relearned? 	mustn't I have been relearning?
mustn't you have been relearning?
mustn't he have been relearning?
mustn't we have been relearning?
mustn't you have been relearning?
mustn't they have been relearning?