must overbear
Irregular verb: overbear - overbore- overborne, overborn

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must overbear
you must overbear
he must overbear
we must overbear
you must overbear
they must overbear 	I must be overbearing
you must be overbearing
he must be overbearing
we must be overbearing
you must be overbearing
they must be overbearing	I must have overborne, overborn
you must have overborne, overborn
he must have overborne, overborn
we must have overborne, overborn
you must have overborne, overborn
they must have overborne, overborn	I must have been overbearing
you must have been overbearing
he must have been overbearing
we must have been overbearing
you must have been overbearing
they must have been overbearing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't overbear
you mustn't overbear
he mustn't overbear
we mustn't overbear
you mustn't overbear
they mustn't overbear 	I mustn't be overbearing
you mustn't be overbearing
he mustn't be overbearing
we mustn't be overbearing
you mustn't be overbearing
they mustn't be overbearing	I mustn't have overborne, overborn
you mustn't have overborne, overborn
he mustn't have overborne, overborn
we mustn't have overborne, overborn
you mustn't have overborne, overborn
they mustn't have overborne, overborn	I mustn't have been overbearing
you mustn't have been overbearing
he mustn't have been overbearing
we mustn't have been overbearing
you mustn't have been overbearing
they mustn't have been overbearing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I overbear?
must you overbear?
must he overbear?
must we overbear?
must you overbear?
must they overbear? 	must I be overbearing?
must you be overbearing?
must he be overbearing?
must we be overbearing?
must you be overbearing?
must they be overbearing? 	must I have overborne, overborn?
must you have overborne, overborn?
must he have overborne, overborn?
must we have overborne, overborn?
must you have overborne, overborn?
must they have overborne, overborn? 	must I have been overbearing?
must you have been overbearing?
must he have been overbearing?
must we have been overbearing?
must you have been overbearing?
must they have been overbearing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I overbear?
mustn't you overbear?
mustn't he overbear?
mustn't we overbear?
mustn't you overbear?
mustn't they overbear? 	mustn't I be overbearing?
mustn't you be overbearing?
mustn't he be overbearing?
mustn't we be overbearing?
mustn't you be overbearing?
mustn't they be overbearing? 	mustn't I have overborne, overborn?
mustn't you have overborne, overborn?
mustn't he have overborne, overborn?
mustn't we have overborne, overborn?
mustn't you have overborne, overborn?
mustn't they have overborne, overborn? 	mustn't I have been overbearing?
mustn't you have been overbearing?
mustn't he have been overbearing?
mustn't we have been overbearing?
mustn't you have been overbearing?
mustn't they have been overbearing?