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 must not nickname
you must not nickname
she must not nickname
we must not nickname
you must not nickname
they must not nickname 	I must not be nicknaming
you must not be nicknaming
she must not be nicknaming
we must not be nicknaming
you must not be nicknaming
they must not be nicknaming	I must not have nicknamed
you must not have nicknamed
she must not have nicknamed
we must not have nicknamed
you must not have nicknamed
they must not have nicknamed	I must not have been nicknaming
you must not have been nicknaming
she must not have been nicknaming
we must not have been nicknaming
you must not have been nicknaming
they must not 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 	
must I not nickname?
must you not nickname?
must she not nickname?
must we not nickname?
must you not nickname?
must they not nickname? 	must I not be nicknaming?
must you not be nicknaming?
must she not be nicknaming?
must we not be nicknaming?
must you not be nicknaming?
must they not be nicknaming? 	must I not have nicknamed?
must you not have nicknamed?
must she not have nicknamed?
must we not have nicknamed?
must you not have nicknamed?
must they not have nicknamed? 	must I not have been nicknaming?
must you not have been nicknaming?
must she not have been nicknaming?
must we not have been nicknaming?
must you not have been nicknaming?
must they not have been nicknaming?