I must highlight you must highlight he must highlight we must highlight you must highlight they must highlight
V-ing form
I must be highlighting you must be highlighting he must be highlighting we must be highlighting you must be highlighting they must be highlighting
Perfect
I must have highlighted you must have highlighted he must have highlighted we must have highlighted you must have highlighted they must have highlighted
V-ing perfect
I must have been highlighting you must have been highlighting he must have been highlighting we must have been highlighting you must have been highlighting they must have been highlighting
Negation
Simple form
I must not highlight you must not highlight he must not highlight we must not highlight you must not highlight they must not highlight
V-ing form
I must not be highlighting you must not be highlighting he must not be highlighting we must not be highlighting you must not be highlighting they must not be highlighting
Perfect
I must not have highlighted you must not have highlighted he must not have highlighted we must not have highlighted you must not have highlighted they must not have highlighted
V-ing perfect
I must not have been highlighting you must not have been highlighting he must not have been highlighting we must not have been highlighting you must not have been highlighting they must not have been highlighting
Interrogative form
Simple form
must I highlight? must you highlight? must he highlight? must we highlight? must you highlight? must they highlight?
V-ing form
must I be highlighting? must you be highlighting? must he be highlighting? must we be highlighting? must you be highlighting? must they be highlighting?
Perfect
must I have highlighted? must you have highlighted? must he have highlighted? must we have highlighted? must you have highlighted? must they have highlighted?
V-ing perfect
must I have been highlighting? must you have been highlighting? must he have been highlighting? must we have been highlighting? must you have been highlighting? must they have been highlighting?
Interro-negative form
Simple form
must I not highlight? must you not highlight? must he not highlight? must we not highlight? must you not highlight? must they not highlight?
V-ing form
must I not be highlighting? must you not be highlighting? must he not be highlighting? must we not be highlighting? must you not be highlighting? must they not be highlighting?
Perfect
must I not have highlighted? must you not have highlighted? must he not have highlighted? must we not have highlighted? must you not have highlighted? must they not have highlighted?
V-ing perfect
must I not have been highlighting? must you not have been highlighting? must he not have been highlighting? must we not have been highlighting? must you not have been highlighting? must they not have been highlighting?