I must match you must match he must match we must match you must match they must match
V-ing form
I must be matching you must be matching he must be matching we must be matching you must be matching they must be matching
Perfect
I must have matched you must have matched he must have matched we must have matched you must have matched they must have matched
V-ing perfect
I must have been matching you must have been matching he must have been matching we must have been matching you must have been matching they must have been matching
Negation
Simple form
I must not match you must not match he must not match we must not match you must not match they must not match
V-ing form
I must not be matching you must not be matching he must not be matching we must not be matching you must not be matching they must not be matching
Perfect
I must not have matched you must not have matched he must not have matched we must not have matched you must not have matched they must not have matched
V-ing perfect
I must not have been matching you must not have been matching he must not have been matching we must not have been matching you must not have been matching they must not have been matching
Interrogative form
Simple form
must I match? must you match? must he match? must we match? must you match? must they match?
V-ing form
must I be matching? must you be matching? must he be matching? must we be matching? must you be matching? must they be matching?
Perfect
must I have matched? must you have matched? must he have matched? must we have matched? must you have matched? must they have matched?
V-ing perfect
must I have been matching? must you have been matching? must he have been matching? must we have been matching? must you have been matching? must they have been matching?
Interro-negative form
Simple form
must I not match? must you not match? must he not match? must we not match? must you not match? must they not match?
V-ing form
must I not be matching? must you not be matching? must he not be matching? must we not be matching? must you not be matching? must they not be matching?
Perfect
must I not have matched? must you not have matched? must he not have matched? must we not have matched? must you not have matched? must they not have matched?
V-ing perfect
must I not have been matching? must you not have been matching? must he not have been matching? must we not have been matching? must you not have been matching? must they not have been matching?