I must rake you must rake he must rake we must rake you must rake they must rake
V-ing form
I must be raking you must be raking he must be raking we must be raking you must be raking they must be raking
Perfect
I must have raked you must have raked he must have raked we must have raked you must have raked they must have raked
V-ing perfect
I must have been raking you must have been raking he must have been raking we must have been raking you must have been raking they must have been raking
Negation
Simple form
I must not rake you must not rake he must not rake we must not rake you must not rake they must not rake
V-ing form
I must not be raking you must not be raking he must not be raking we must not be raking you must not be raking they must not be raking
Perfect
I must not have raked you must not have raked he must not have raked we must not have raked you must not have raked they must not have raked
V-ing perfect
I must not have been raking you must not have been raking he must not have been raking we must not have been raking you must not have been raking they must not have been raking
Interrogative form
Simple form
must I rake? must you rake? must he rake? must we rake? must you rake? must they rake?
V-ing form
must I be raking? must you be raking? must he be raking? must we be raking? must you be raking? must they be raking?
Perfect
must I have raked? must you have raked? must he have raked? must we have raked? must you have raked? must they have raked?
V-ing perfect
must I have been raking? must you have been raking? must he have been raking? must we have been raking? must you have been raking? must they have been raking?
Interro-negative form
Simple form
must I not rake? must you not rake? must he not rake? must we not rake? must you not rake? must they not rake?
V-ing form
must I not be raking? must you not be raking? must he not be raking? must we not be raking? must you not be raking? must they not be raking?
Perfect
must I not have raked? must you not have raked? must he not have raked? must we not have raked? must you not have raked? must they not have raked?
V-ing perfect
must I not have been raking? must you not have been raking? must he not have been raking? must we not have been raking? must you not have been raking? must they not have been raking?