I must subsist you must subsist he must subsist we must subsist you must subsist they must subsist
V-ing form
I must be subsisting you must be subsisting he must be subsisting we must be subsisting you must be subsisting they must be subsisting
Perfect
I must have subsisted you must have subsisted he must have subsisted we must have subsisted you must have subsisted they must have subsisted
V-ing perfect
I must have been subsisting you must have been subsisting he must have been subsisting we must have been subsisting you must have been subsisting they must have been subsisting
Negation
Simple form
I must not subsist you must not subsist he must not subsist we must not subsist you must not subsist they must not subsist
V-ing form
I must not be subsisting you must not be subsisting he must not be subsisting we must not be subsisting you must not be subsisting they must not be subsisting
Perfect
I must not have subsisted you must not have subsisted he must not have subsisted we must not have subsisted you must not have subsisted they must not have subsisted
V-ing perfect
I must not have been subsisting you must not have been subsisting he must not have been subsisting we must not have been subsisting you must not have been subsisting they must not have been subsisting
Interrogative form
Simple form
must I subsist? must you subsist? must he subsist? must we subsist? must you subsist? must they subsist?
V-ing form
must I be subsisting? must you be subsisting? must he be subsisting? must we be subsisting? must you be subsisting? must they be subsisting?
Perfect
must I have subsisted? must you have subsisted? must he have subsisted? must we have subsisted? must you have subsisted? must they have subsisted?
V-ing perfect
must I have been subsisting? must you have been subsisting? must he have been subsisting? must we have been subsisting? must you have been subsisting? must they have been subsisting?
Interro-negative form
Simple form
must I not subsist? must you not subsist? must he not subsist? must we not subsist? must you not subsist? must they not subsist?
V-ing form
must I not be subsisting? must you not be subsisting? must he not be subsisting? must we not be subsisting? must you not be subsisting? must they not be subsisting?
Perfect
must I not have subsisted? must you not have subsisted? must he not have subsisted? must we not have subsisted? must you not have subsisted? must they not have subsisted?
V-ing perfect
must I not have been subsisting? must you not have been subsisting? must he not have been subsisting? must we not have been subsisting? must you not have been subsisting? must they not have been subsisting?