must overjoy
Regular verb: overjoy - overjoyed- overjoyed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must overjoy
you must overjoy
he must overjoy
we must overjoy
you must overjoy
they must overjoy 	I must be overjoying
you must be overjoying
he must be overjoying
we must be overjoying
you must be overjoying
they must be overjoying	I must have overjoyed
you must have overjoyed
he must have overjoyed
we must have overjoyed
you must have overjoyed
they must have overjoyed	I must have been overjoying
you must have been overjoying
he must have been overjoying
we must have been overjoying
you must have been overjoying
they must have been overjoying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not overjoy
you must not overjoy
he must not overjoy
we must not overjoy
you must not overjoy
they must not overjoy 	I must not be overjoying
you must not be overjoying
he must not be overjoying
we must not be overjoying
you must not be overjoying
they must not be overjoying	I must not have overjoyed
you must not have overjoyed
he must not have overjoyed
we must not have overjoyed
you must not have overjoyed
they must not have overjoyed	I must not have been overjoying
you must not have been overjoying
he must not have been overjoying
we must not have been overjoying
you must not have been overjoying
they must not have been overjoying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I overjoy?
must you overjoy?
must he overjoy?
must we overjoy?
must you overjoy?
must they overjoy? 	must I be overjoying?
must you be overjoying?
must he be overjoying?
must we be overjoying?
must you be overjoying?
must they be overjoying? 	must I have overjoyed?
must you have overjoyed?
must he have overjoyed?
must we have overjoyed?
must you have overjoyed?
must they have overjoyed? 	must I have been overjoying?
must you have been overjoying?
must he have been overjoying?
must we have been overjoying?
must you have been overjoying?
must they have been overjoying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not overjoy?
must you not overjoy?
must he not overjoy?
must we not overjoy?
must you not overjoy?
must they not overjoy? 	must I not be overjoying?
must you not be overjoying?
must he not be overjoying?
must we not be overjoying?
must you not be overjoying?
must they not be overjoying? 	must I not have overjoyed?
must you not have overjoyed?
must he not have overjoyed?
must we not have overjoyed?
must you not have overjoyed?
must they not have overjoyed? 	must I not have been overjoying?
must you not have been overjoying?
must he not have been overjoying?
must we not have been overjoying?
must you not have been overjoying?
must they not have been overjoying?