I must defibrillate you must defibrillate he must defibrillate we must defibrillate you must defibrillate they must defibrillate
V-ing form
I must be defibrillating you must be defibrillating he must be defibrillating we must be defibrillating you must be defibrillating they must be defibrillating
Perfect
I must have defibrillated you must have defibrillated he must have defibrillated we must have defibrillated you must have defibrillated they must have defibrillated
V-ing perfect
I must have been defibrillating you must have been defibrillating he must have been defibrillating we must have been defibrillating you must have been defibrillating they must have been defibrillating
Negation
Simple form
I must not defibrillate you must not defibrillate he must not defibrillate we must not defibrillate you must not defibrillate they must not defibrillate
V-ing form
I must not be defibrillating you must not be defibrillating he must not be defibrillating we must not be defibrillating you must not be defibrillating they must not be defibrillating
Perfect
I must not have defibrillated you must not have defibrillated he must not have defibrillated we must not have defibrillated you must not have defibrillated they must not have defibrillated
V-ing perfect
I must not have been defibrillating you must not have been defibrillating he must not have been defibrillating we must not have been defibrillating you must not have been defibrillating they must not have been defibrillating
Interrogative form
Simple form
must I defibrillate? must you defibrillate? must he defibrillate? must we defibrillate? must you defibrillate? must they defibrillate?
V-ing form
must I be defibrillating? must you be defibrillating? must he be defibrillating? must we be defibrillating? must you be defibrillating? must they be defibrillating?
Perfect
must I have defibrillated? must you have defibrillated? must he have defibrillated? must we have defibrillated? must you have defibrillated? must they have defibrillated?
V-ing perfect
must I have been defibrillating? must you have been defibrillating? must he have been defibrillating? must we have been defibrillating? must you have been defibrillating? must they have been defibrillating?
Interro-negative form
Simple form
must I not defibrillate? must you not defibrillate? must he not defibrillate? must we not defibrillate? must you not defibrillate? must they not defibrillate?
V-ing form
must I not be defibrillating? must you not be defibrillating? must he not be defibrillating? must we not be defibrillating? must you not be defibrillating? must they not be defibrillating?
Perfect
must I not have defibrillated? must you not have defibrillated? must he not have defibrillated? must we not have defibrillated? must you not have defibrillated? must they not have defibrillated?
V-ing perfect
must I not have been defibrillating? must you not have been defibrillating? must he not have been defibrillating? must we not have been defibrillating? must you not have been defibrillating? must they not have been defibrillating?