I must frame you must frame he must frame we must frame you must frame they must frame
V-ing form
I must be framing you must be framing he must be framing we must be framing you must be framing they must be framing
Perfect
I must have framed you must have framed he must have framed we must have framed you must have framed they must have framed
V-ing perfect
I must have been framing you must have been framing he must have been framing we must have been framing you must have been framing they must have been framing
Negation
Simple form
I must not frame you must not frame he must not frame we must not frame you must not frame they must not frame
V-ing form
I must not be framing you must not be framing he must not be framing we must not be framing you must not be framing they must not be framing
Perfect
I must not have framed you must not have framed he must not have framed we must not have framed you must not have framed they must not have framed
V-ing perfect
I must not have been framing you must not have been framing he must not have been framing we must not have been framing you must not have been framing they must not have been framing
Interrogative form
Simple form
must I frame? must you frame? must he frame? must we frame? must you frame? must they frame?
V-ing form
must I be framing? must you be framing? must he be framing? must we be framing? must you be framing? must they be framing?
Perfect
must I have framed? must you have framed? must he have framed? must we have framed? must you have framed? must they have framed?
V-ing perfect
must I have been framing? must you have been framing? must he have been framing? must we have been framing? must you have been framing? must they have been framing?
Interro-negative form
Simple form
must I not frame? must you not frame? must he not frame? must we not frame? must you not frame? must they not frame?
V-ing form
must I not be framing? must you not be framing? must he not be framing? must we not be framing? must you not be framing? must they not be framing?
Perfect
must I not have framed? must you not have framed? must he not have framed? must we not have framed? must you not have framed? must they not have framed?
V-ing perfect
must I not have been framing? must you not have been framing? must he not have been framing? must we not have been framing? must you not have been framing? must they not have been framing?