I must depopulate you must depopulate she must depopulate we must depopulate you must depopulate they must depopulate
V-ing form
I must be depopulating you must be depopulating she must be depopulating we must be depopulating you must be depopulating they must be depopulating
Perfect
I must have depopulated you must have depopulated she must have depopulated we must have depopulated you must have depopulated they must have depopulated
V-ing perfect
I must have been depopulating you must have been depopulating she must have been depopulating we must have been depopulating you must have been depopulating they must have been depopulating
Negation
Simple form
I must not depopulate you must not depopulate she must not depopulate we must not depopulate you must not depopulate they must not depopulate
V-ing form
I must not be depopulating you must not be depopulating she must not be depopulating we must not be depopulating you must not be depopulating they must not be depopulating
Perfect
I must not have depopulated you must not have depopulated she must not have depopulated we must not have depopulated you must not have depopulated they must not have depopulated
V-ing perfect
I must not have been depopulating you must not have been depopulating she must not have been depopulating we must not have been depopulating you must not have been depopulating they must not have been depopulating
Interrogative form
Simple form
must I depopulate? must you depopulate? must she depopulate? must we depopulate? must you depopulate? must they depopulate?
V-ing form
must I be depopulating? must you be depopulating? must she be depopulating? must we be depopulating? must you be depopulating? must they be depopulating?
Perfect
must I have depopulated? must you have depopulated? must she have depopulated? must we have depopulated? must you have depopulated? must they have depopulated?
V-ing perfect
must I have been depopulating? must you have been depopulating? must she have been depopulating? must we have been depopulating? must you have been depopulating? must they have been depopulating?
Interro-negative form
Simple form
must I not depopulate? must you not depopulate? must she not depopulate? must we not depopulate? must you not depopulate? must they not depopulate?
V-ing form
must I not be depopulating? must you not be depopulating? must she not be depopulating? must we not be depopulating? must you not be depopulating? must they not be depopulating?
Perfect
must I not have depopulated? must you not have depopulated? must she not have depopulated? must we not have depopulated? must you not have depopulated? must they not have depopulated?
V-ing perfect
must I not have been depopulating? must you not have been depopulating? must she not have been depopulating? must we not have been depopulating? must you not have been depopulating? must they not have been depopulating?