I must ravage you must ravage he must ravage we must ravage you must ravage they must ravage
V-ing form
I must be ravaging you must be ravaging he must be ravaging we must be ravaging you must be ravaging they must be ravaging
Perfect
I must have ravaged you must have ravaged he must have ravaged we must have ravaged you must have ravaged they must have ravaged
V-ing perfect
I must have been ravaging you must have been ravaging he must have been ravaging we must have been ravaging you must have been ravaging they must have been ravaging
Negation
Simple form
I mustn't ravage you mustn't ravage he mustn't ravage we mustn't ravage you mustn't ravage they mustn't ravage
V-ing form
I mustn't be ravaging you mustn't be ravaging he mustn't be ravaging we mustn't be ravaging you mustn't be ravaging they mustn't be ravaging
Perfect
I mustn't have ravaged you mustn't have ravaged he mustn't have ravaged we mustn't have ravaged you mustn't have ravaged they mustn't have ravaged
V-ing perfect
I mustn't have been ravaging you mustn't have been ravaging he mustn't have been ravaging we mustn't have been ravaging you mustn't have been ravaging they mustn't have been ravaging
Interrogative form
Simple form
must I ravage? must you ravage? must he ravage? must we ravage? must you ravage? must they ravage?
V-ing form
must I be ravaging? must you be ravaging? must he be ravaging? must we be ravaging? must you be ravaging? must they be ravaging?
Perfect
must I have ravaged? must you have ravaged? must he have ravaged? must we have ravaged? must you have ravaged? must they have ravaged?
V-ing perfect
must I have been ravaging? must you have been ravaging? must he have been ravaging? must we have been ravaging? must you have been ravaging? must they have been ravaging?
Interro-negative form
Simple form
mustn't I ravage? mustn't you ravage? mustn't he ravage? mustn't we ravage? mustn't you ravage? mustn't they ravage?
V-ing form
mustn't I be ravaging? mustn't you be ravaging? mustn't he be ravaging? mustn't we be ravaging? mustn't you be ravaging? mustn't they be ravaging?
Perfect
mustn't I have ravaged? mustn't you have ravaged? mustn't he have ravaged? mustn't we have ravaged? mustn't you have ravaged? mustn't they have ravaged?
V-ing perfect
mustn't I have been ravaging? mustn't you have been ravaging? mustn't he have been ravaging? mustn't we have been ravaging? mustn't you have been ravaging? mustn't they have been ravaging?