I must determine you must determine she must determine we must determine you must determine they must determine
V-ing form
I must be determining you must be determining she must be determining we must be determining you must be determining they must be determining
Perfect
I must have determined you must have determined she must have determined we must have determined you must have determined they must have determined
V-ing perfect
I must have been determining you must have been determining she must have been determining we must have been determining you must have been determining they must have been determining
Negation
Simple form
I must not determine you must not determine she must not determine we must not determine you must not determine they must not determine
V-ing form
I must not be determining you must not be determining she must not be determining we must not be determining you must not be determining they must not be determining
Perfect
I must not have determined you must not have determined she must not have determined we must not have determined you must not have determined they must not have determined
V-ing perfect
I must not have been determining you must not have been determining she must not have been determining we must not have been determining you must not have been determining they must not have been determining
Interrogative form
Simple form
must I determine? must you determine? must she determine? must we determine? must you determine? must they determine?
V-ing form
must I be determining? must you be determining? must she be determining? must we be determining? must you be determining? must they be determining?
Perfect
must I have determined? must you have determined? must she have determined? must we have determined? must you have determined? must they have determined?
V-ing perfect
must I have been determining? must you have been determining? must she have been determining? must we have been determining? must you have been determining? must they have been determining?
Interro-negative form
Simple form
must I not determine? must you not determine? must she not determine? must we not determine? must you not determine? must they not determine?
V-ing form
must I not be determining? must you not be determining? must she not be determining? must we not be determining? must you not be determining? must they not be determining?
Perfect
must I not have determined? must you not have determined? must she not have determined? must we not have determined? must you not have determined? must they not have determined?
V-ing perfect
must I not have been determining? must you not have been determining? must she not have been determining? must we not have been determining? must you not have been determining? must they not have been determining?