I must besmear you must besmear he must besmear we must besmear you must besmear they must besmear
V-ing form
I must be besmearing you must be besmearing he must be besmearing we must be besmearing you must be besmearing they must be besmearing
Perfect
I must have besmeared you must have besmeared he must have besmeared we must have besmeared you must have besmeared they must have besmeared
V-ing perfect
I must have been besmearing you must have been besmearing he must have been besmearing we must have been besmearing you must have been besmearing they must have been besmearing
Negation
Simple form
I must not besmear you must not besmear he must not besmear we must not besmear you must not besmear they must not besmear
V-ing form
I must not be besmearing you must not be besmearing he must not be besmearing we must not be besmearing you must not be besmearing they must not be besmearing
Perfect
I must not have besmeared you must not have besmeared he must not have besmeared we must not have besmeared you must not have besmeared they must not have besmeared
V-ing perfect
I must not have been besmearing you must not have been besmearing he must not have been besmearing we must not have been besmearing you must not have been besmearing they must not have been besmearing
Interrogative form
Simple form
must I besmear? must you besmear? must he besmear? must we besmear? must you besmear? must they besmear?
V-ing form
must I be besmearing? must you be besmearing? must he be besmearing? must we be besmearing? must you be besmearing? must they be besmearing?
Perfect
must I have besmeared? must you have besmeared? must he have besmeared? must we have besmeared? must you have besmeared? must they have besmeared?
V-ing perfect
must I have been besmearing? must you have been besmearing? must he have been besmearing? must we have been besmearing? must you have been besmearing? must they have been besmearing?
Interro-negative form
Simple form
must I not besmear? must you not besmear? must he not besmear? must we not besmear? must you not besmear? must they not besmear?
V-ing form
must I not be besmearing? must you not be besmearing? must he not be besmearing? must we not be besmearing? must you not be besmearing? must they not be besmearing?
Perfect
must I not have besmeared? must you not have besmeared? must he not have besmeared? must we not have besmeared? must you not have besmeared? must they not have besmeared?
V-ing perfect
must I not have been besmearing? must you not have been besmearing? must he not have been besmearing? must we not have been besmearing? must you not have been besmearing? must they not have been besmearing?