must relearn
Regular verb: relearn - relearned- relearned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must relearn
you must relearn
she must relearn
we must relearn
you must relearn
they must relearn 	I must be relearning
you must be relearning
she must be relearning
we must be relearning
you must be relearning
they must be relearning	I must have relearned
you must have relearned
she 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
she 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
she 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
she 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
she 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
she 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 she relearn?
must we relearn?
must you relearn?
must they relearn? 	must I be relearning?
must you be relearning?
must she be relearning?
must we be relearning?
must you be relearning?
must they be relearning? 	must I have relearned?
must you have relearned?
must she 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 she 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 she 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 she 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 she 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 she have been relearning?
mustn't we have been relearning?
mustn't you have been relearning?
mustn't they have been relearning?