must ravage
Regular verb: ravage - ravaged- ravaged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must ravage
you must ravage
she must ravage
we must ravage
you must ravage
they must ravage 	I must be ravaging
you must be ravaging
she must be ravaging
we must be ravaging
you must be ravaging
they must be ravaging	I must have ravaged
you must have ravaged
she must have ravaged
we must have ravaged
you must have ravaged
they must have ravaged	I must have been ravaging
you must have been ravaging
she must have been ravaging
we must have been ravaging
you must have been ravaging
they must have been ravaging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not ravage
you must not ravage
she must not ravage
we must not ravage
you must not ravage
they must not ravage 	I must not be ravaging
you must not be ravaging
she must not be ravaging
we must not be ravaging
you must not be ravaging
they must not be ravaging	I must not have ravaged
you must not have ravaged
she must not have ravaged
we must not have ravaged
you must not have ravaged
they must not have ravaged	I must not have been ravaging
you must not have been ravaging
she must not have been ravaging
we must not have been ravaging
you must not have been ravaging
they must not have been ravaging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I ravage?
must you ravage?
must she ravage?
must we ravage?
must you ravage?
must they ravage? 	must I be ravaging?
must you be ravaging?
must she be ravaging?
must we be ravaging?
must you be ravaging?
must they be ravaging? 	must I have ravaged?
must you have ravaged?
must she have ravaged?
must we have ravaged?
must you have ravaged?
must they have ravaged? 	must I have been ravaging?
must you have been ravaging?
must she have been ravaging?
must we have been ravaging?
must you have been ravaging?
must they have been ravaging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not ravage?
must you not ravage?
must she not ravage?
must we not ravage?
must you not ravage?
must they not ravage? 	must I not be ravaging?
must you not be ravaging?
must she not be ravaging?
must we not be ravaging?
must you not be ravaging?
must they not be ravaging? 	must I not have ravaged?
must you not have ravaged?
must she not have ravaged?
must we not have ravaged?
must you not have ravaged?
must they not have ravaged? 	must I not have been ravaging?
must you not have been ravaging?
must she not have been ravaging?
must we not have been ravaging?
must you not have been ravaging?
must they not have been ravaging?