I must speed-read you must speed-read he must speed-read we must speed-read you must speed-read they must speed-read
V-ing form
I must be speed-reading you must be speed-reading he must be speed-reading we must be speed-reading you must be speed-reading they must be speed-reading
Perfect
I must have speed-read you must have speed-read he must have speed-read we must have speed-read you must have speed-read they must have speed-read
V-ing perfect
I must have been speed-reading you must have been speed-reading he must have been speed-reading we must have been speed-reading you must have been speed-reading they must have been speed-reading
Negation
Simple form
I mustn't speed-read you mustn't speed-read he mustn't speed-read we mustn't speed-read you mustn't speed-read they mustn't speed-read
V-ing form
I mustn't be speed-reading you mustn't be speed-reading he mustn't be speed-reading we mustn't be speed-reading you mustn't be speed-reading they mustn't be speed-reading
Perfect
I mustn't have speed-read you mustn't have speed-read he mustn't have speed-read we mustn't have speed-read you mustn't have speed-read they mustn't have speed-read
V-ing perfect
I mustn't have been speed-reading you mustn't have been speed-reading he mustn't have been speed-reading we mustn't have been speed-reading you mustn't have been speed-reading they mustn't have been speed-reading
Interrogative form
Simple form
must I speed-read? must you speed-read? must he speed-read? must we speed-read? must you speed-read? must they speed-read?
V-ing form
must I be speed-reading? must you be speed-reading? must he be speed-reading? must we be speed-reading? must you be speed-reading? must they be speed-reading?
Perfect
must I have speed-read? must you have speed-read? must he have speed-read? must we have speed-read? must you have speed-read? must they have speed-read?
V-ing perfect
must I have been speed-reading? must you have been speed-reading? must he have been speed-reading? must we have been speed-reading? must you have been speed-reading? must they have been speed-reading?
Interro-negative form
Simple form
mustn't I speed-read? mustn't you speed-read? mustn't he speed-read? mustn't we speed-read? mustn't you speed-read? mustn't they speed-read?
V-ing form
mustn't I be speed-reading? mustn't you be speed-reading? mustn't he be speed-reading? mustn't we be speed-reading? mustn't you be speed-reading? mustn't they be speed-reading?
Perfect
mustn't I have speed-read? mustn't you have speed-read? mustn't he have speed-read? mustn't we have speed-read? mustn't you have speed-read? mustn't they have speed-read?
V-ing perfect
mustn't I have been speed-reading? mustn't you have been speed-reading? mustn't he have been speed-reading? mustn't we have been speed-reading? mustn't you have been speed-reading? mustn't they have been speed-reading?