I must optimize you must optimize she must optimize we must optimize you must optimize they must optimize
V-ing form
I must be optimizing you must be optimizing she must be optimizing we must be optimizing you must be optimizing they must be optimizing
Perfect
I must have optimized you must have optimized she must have optimized we must have optimized you must have optimized they must have optimized
V-ing perfect
I must have been optimizing you must have been optimizing she must have been optimizing we must have been optimizing you must have been optimizing they must have been optimizing
Negation
Simple form
I must not optimize you must not optimize she must not optimize we must not optimize you must not optimize they must not optimize
V-ing form
I must not be optimizing you must not be optimizing she must not be optimizing we must not be optimizing you must not be optimizing they must not be optimizing
Perfect
I must not have optimized you must not have optimized she must not have optimized we must not have optimized you must not have optimized they must not have optimized
V-ing perfect
I must not have been optimizing you must not have been optimizing she must not have been optimizing we must not have been optimizing you must not have been optimizing they must not have been optimizing
Interrogative form
Simple form
must I optimize? must you optimize? must she optimize? must we optimize? must you optimize? must they optimize?
V-ing form
must I be optimizing? must you be optimizing? must she be optimizing? must we be optimizing? must you be optimizing? must they be optimizing?
Perfect
must I have optimized? must you have optimized? must she have optimized? must we have optimized? must you have optimized? must they have optimized?
V-ing perfect
must I have been optimizing? must you have been optimizing? must she have been optimizing? must we have been optimizing? must you have been optimizing? must they have been optimizing?
Interro-negative form
Simple form
must I not optimize? must you not optimize? must she not optimize? must we not optimize? must you not optimize? must they not optimize?
V-ing form
must I not be optimizing? must you not be optimizing? must she not be optimizing? must we not be optimizing? must you not be optimizing? must they not be optimizing?
Perfect
must I not have optimized? must you not have optimized? must she not have optimized? must we not have optimized? must you not have optimized? must they not have optimized?
V-ing perfect
must I not have been optimizing? must you not have been optimizing? must she not have been optimizing? must we not have been optimizing? must you not have been optimizing? must they not have been optimizing?