I must prebake you must prebake she must prebake we must prebake you must prebake they must prebake
V-ing form
I must be prebaking you must be prebaking she must be prebaking we must be prebaking you must be prebaking they must be prebaking
Perfect
I must have prebaked you must have prebaked she must have prebaked we must have prebaked you must have prebaked they must have prebaked
V-ing perfect
I must have been prebaking you must have been prebaking she must have been prebaking we must have been prebaking you must have been prebaking they must have been prebaking
Negation
Simple form
I must not prebake you must not prebake she must not prebake we must not prebake you must not prebake they must not prebake
V-ing form
I must not be prebaking you must not be prebaking she must not be prebaking we must not be prebaking you must not be prebaking they must not be prebaking
Perfect
I must not have prebaked you must not have prebaked she must not have prebaked we must not have prebaked you must not have prebaked they must not have prebaked
V-ing perfect
I must not have been prebaking you must not have been prebaking she must not have been prebaking we must not have been prebaking you must not have been prebaking they must not have been prebaking
Interrogative form
Simple form
must I prebake? must you prebake? must she prebake? must we prebake? must you prebake? must they prebake?
V-ing form
must I be prebaking? must you be prebaking? must she be prebaking? must we be prebaking? must you be prebaking? must they be prebaking?
Perfect
must I have prebaked? must you have prebaked? must she have prebaked? must we have prebaked? must you have prebaked? must they have prebaked?
V-ing perfect
must I have been prebaking? must you have been prebaking? must she have been prebaking? must we have been prebaking? must you have been prebaking? must they have been prebaking?
Interro-negative form
Simple form
must I not prebake? must you not prebake? must she not prebake? must we not prebake? must you not prebake? must they not prebake?
V-ing form
must I not be prebaking? must you not be prebaking? must she not be prebaking? must we not be prebaking? must you not be prebaking? must they not be prebaking?
Perfect
must I not have prebaked? must you not have prebaked? must she not have prebaked? must we not have prebaked? must you not have prebaked? must they not have prebaked?
V-ing perfect
must I not have been prebaking? must you not have been prebaking? must she not have been prebaking? must we not have been prebaking? must you not have been prebaking? must they not have been prebaking?