must nickname
Regular verb: nickname - nicknamed- nicknamed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must nickname
you must nickname
she must nickname
we must nickname
you must nickname
they must nickname 	I must be nicknaming
you must be nicknaming
she must be nicknaming
we must be nicknaming
you must be nicknaming
they must be nicknaming	I must have nicknamed
you must have nicknamed
she must have nicknamed
we must have nicknamed
you must have nicknamed
they must have nicknamed	I must have been nicknaming
you must have been nicknaming
she must have been nicknaming
we must have been nicknaming
you must have been nicknaming
they must have been nicknaming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't nickname
you mustn't nickname
she mustn't nickname
we mustn't nickname
you mustn't nickname
they mustn't nickname 	I mustn't be nicknaming
you mustn't be nicknaming
she mustn't be nicknaming
we mustn't be nicknaming
you mustn't be nicknaming
they mustn't be nicknaming	I mustn't have nicknamed
you mustn't have nicknamed
she mustn't have nicknamed
we mustn't have nicknamed
you mustn't have nicknamed
they mustn't have nicknamed	I mustn't have been nicknaming
you mustn't have been nicknaming
she mustn't have been nicknaming
we mustn't have been nicknaming
you mustn't have been nicknaming
they mustn't have been nicknaming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I nickname?
must you nickname?
must she nickname?
must we nickname?
must you nickname?
must they nickname? 	must I be nicknaming?
must you be nicknaming?
must she be nicknaming?
must we be nicknaming?
must you be nicknaming?
must they be nicknaming? 	must I have nicknamed?
must you have nicknamed?
must she have nicknamed?
must we have nicknamed?
must you have nicknamed?
must they have nicknamed? 	must I have been nicknaming?
must you have been nicknaming?
must she have been nicknaming?
must we have been nicknaming?
must you have been nicknaming?
must they have been nicknaming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I nickname?
mustn't you nickname?
mustn't she nickname?
mustn't we nickname?
mustn't you nickname?
mustn't they nickname? 	mustn't I be nicknaming?
mustn't you be nicknaming?
mustn't she be nicknaming?
mustn't we be nicknaming?
mustn't you be nicknaming?
mustn't they be nicknaming? 	mustn't I have nicknamed?
mustn't you have nicknamed?
mustn't she have nicknamed?
mustn't we have nicknamed?
mustn't you have nicknamed?
mustn't they have nicknamed? 	mustn't I have been nicknaming?
mustn't you have been nicknaming?
mustn't she have been nicknaming?
mustn't we have been nicknaming?
mustn't you have been nicknaming?
mustn't they have been nicknaming?