must damage
Regular verb: damage - damaged- damaged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must damage
you must damage
he must damage
we must damage
you must damage
they must damage 	I must be damaging
you must be damaging
he must be damaging
we must be damaging
you must be damaging
they must be damaging	I must have damaged
you must have damaged
he must have damaged
we must have damaged
you must have damaged
they must have damaged	I must have been damaging
you must have been damaging
he must have been damaging
we must have been damaging
you must have been damaging
they must have been damaging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't damage
you mustn't damage
he mustn't damage
we mustn't damage
you mustn't damage
they mustn't damage 	I mustn't be damaging
you mustn't be damaging
he mustn't be damaging
we mustn't be damaging
you mustn't be damaging
they mustn't be damaging	I mustn't have damaged
you mustn't have damaged
he mustn't have damaged
we mustn't have damaged
you mustn't have damaged
they mustn't have damaged	I mustn't have been damaging
you mustn't have been damaging
he mustn't have been damaging
we mustn't have been damaging
you mustn't have been damaging
they mustn't have been damaging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I damage?
must you damage?
must he damage?
must we damage?
must you damage?
must they damage? 	must I be damaging?
must you be damaging?
must he be damaging?
must we be damaging?
must you be damaging?
must they be damaging? 	must I have damaged?
must you have damaged?
must he have damaged?
must we have damaged?
must you have damaged?
must they have damaged? 	must I have been damaging?
must you have been damaging?
must he have been damaging?
must we have been damaging?
must you have been damaging?
must they have been damaging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I damage?
mustn't you damage?
mustn't he damage?
mustn't we damage?
mustn't you damage?
mustn't they damage? 	mustn't I be damaging?
mustn't you be damaging?
mustn't he be damaging?
mustn't we be damaging?
mustn't you be damaging?
mustn't they be damaging? 	mustn't I have damaged?
mustn't you have damaged?
mustn't he have damaged?
mustn't we have damaged?
mustn't you have damaged?
mustn't they have damaged? 	mustn't I have been damaging?
mustn't you have been damaging?
mustn't he have been damaging?
mustn't we have been damaging?
mustn't you have been damaging?
mustn't they have been damaging?