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 must not damage
you must not damage
he must not damage
we must not damage
you must not damage
they must not damage 	I must not be damaging
you must not be damaging
he must not be damaging
we must not be damaging
you must not be damaging
they must not be damaging	I must not have damaged
you must not have damaged
he must not have damaged
we must not have damaged
you must not have damaged
they must not have damaged	I must not have been damaging
you must not have been damaging
he must not have been damaging
we must not have been damaging
you must not have been damaging
they must not 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 	
must I not damage?
must you not damage?
must he not damage?
must we not damage?
must you not damage?
must they not damage? 	must I not be damaging?
must you not be damaging?
must he not be damaging?
must we not be damaging?
must you not be damaging?
must they not be damaging? 	must I not have damaged?
must you not have damaged?
must he not have damaged?
must we not have damaged?
must you not have damaged?
must they not have damaged? 	must I not have been damaging?
must you not have been damaging?
must he not have been damaging?
must we not have been damaging?
must you not have been damaging?
must they not have been damaging?