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