I must summarize you must summarize she must summarize we must summarize you must summarize they must summarize
V-ing form
I must be summarizing you must be summarizing she must be summarizing we must be summarizing you must be summarizing they must be summarizing
Perfect
I must have summarized you must have summarized she must have summarized we must have summarized you must have summarized they must have summarized
V-ing perfect
I must have been summarizing you must have been summarizing she must have been summarizing we must have been summarizing you must have been summarizing they must have been summarizing
Negation
Simple form
I must not summarize you must not summarize she must not summarize we must not summarize you must not summarize they must not summarize
V-ing form
I must not be summarizing you must not be summarizing she must not be summarizing we must not be summarizing you must not be summarizing they must not be summarizing
Perfect
I must not have summarized you must not have summarized she must not have summarized we must not have summarized you must not have summarized they must not have summarized
V-ing perfect
I must not have been summarizing you must not have been summarizing she must not have been summarizing we must not have been summarizing you must not have been summarizing they must not have been summarizing
Interrogative form
Simple form
must I summarize? must you summarize? must she summarize? must we summarize? must you summarize? must they summarize?
V-ing form
must I be summarizing? must you be summarizing? must she be summarizing? must we be summarizing? must you be summarizing? must they be summarizing?
Perfect
must I have summarized? must you have summarized? must she have summarized? must we have summarized? must you have summarized? must they have summarized?
V-ing perfect
must I have been summarizing? must you have been summarizing? must she have been summarizing? must we have been summarizing? must you have been summarizing? must they have been summarizing?
Interro-negative form
Simple form
must I not summarize? must you not summarize? must she not summarize? must we not summarize? must you not summarize? must they not summarize?
V-ing form
must I not be summarizing? must you not be summarizing? must she not be summarizing? must we not be summarizing? must you not be summarizing? must they not be summarizing?
Perfect
must I not have summarized? must you not have summarized? must she not have summarized? must we not have summarized? must you not have summarized? must they not have summarized?
V-ing perfect
must I not have been summarizing? must you not have been summarizing? must she not have been summarizing? must we not have been summarizing? must you not have been summarizing? must they not have been summarizing?