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