I must photocoagulate you must photocoagulate she must photocoagulate we must photocoagulate you must photocoagulate they must photocoagulate
V-ing form
I must be photocoagulating you must be photocoagulating she must be photocoagulating we must be photocoagulating you must be photocoagulating they must be photocoagulating
Perfect
I must have photocoagulated you must have photocoagulated she must have photocoagulated we must have photocoagulated you must have photocoagulated they must have photocoagulated
V-ing perfect
I must have been photocoagulating you must have been photocoagulating she must have been photocoagulating we must have been photocoagulating you must have been photocoagulating they must have been photocoagulating
Negation
Simple form
I must not photocoagulate you must not photocoagulate she must not photocoagulate we must not photocoagulate you must not photocoagulate they must not photocoagulate
V-ing form
I must not be photocoagulating you must not be photocoagulating she must not be photocoagulating we must not be photocoagulating you must not be photocoagulating they must not be photocoagulating
Perfect
I must not have photocoagulated you must not have photocoagulated she must not have photocoagulated we must not have photocoagulated you must not have photocoagulated they must not have photocoagulated
V-ing perfect
I must not have been photocoagulating you must not have been photocoagulating she must not have been photocoagulating we must not have been photocoagulating you must not have been photocoagulating they must not have been photocoagulating
Interrogative form
Simple form
must I photocoagulate? must you photocoagulate? must she photocoagulate? must we photocoagulate? must you photocoagulate? must they photocoagulate?
V-ing form
must I be photocoagulating? must you be photocoagulating? must she be photocoagulating? must we be photocoagulating? must you be photocoagulating? must they be photocoagulating?
Perfect
must I have photocoagulated? must you have photocoagulated? must she have photocoagulated? must we have photocoagulated? must you have photocoagulated? must they have photocoagulated?
V-ing perfect
must I have been photocoagulating? must you have been photocoagulating? must she have been photocoagulating? must we have been photocoagulating? must you have been photocoagulating? must they have been photocoagulating?
Interro-negative form
Simple form
must I not photocoagulate? must you not photocoagulate? must she not photocoagulate? must we not photocoagulate? must you not photocoagulate? must they not photocoagulate?
V-ing form
must I not be photocoagulating? must you not be photocoagulating? must she not be photocoagulating? must we not be photocoagulating? must you not be photocoagulating? must they not be photocoagulating?
Perfect
must I not have photocoagulated? must you not have photocoagulated? must she not have photocoagulated? must we not have photocoagulated? must you not have photocoagulated? must they not have photocoagulated?
V-ing perfect
must I not have been photocoagulating? must you not have been photocoagulating? must she not have been photocoagulating? must we not have been photocoagulating? must you not have been photocoagulating? must they not have been photocoagulating?