I must varnish you must varnish he must varnish we must varnish you must varnish they must varnish
V-ing form
I must be varnishing you must be varnishing he must be varnishing we must be varnishing you must be varnishing they must be varnishing
Perfect
I must have varnished you must have varnished he must have varnished we must have varnished you must have varnished they must have varnished
V-ing perfect
I must have been varnishing you must have been varnishing he must have been varnishing we must have been varnishing you must have been varnishing they must have been varnishing
Negation
Simple form
I must not varnish you must not varnish he must not varnish we must not varnish you must not varnish they must not varnish
V-ing form
I must not be varnishing you must not be varnishing he must not be varnishing we must not be varnishing you must not be varnishing they must not be varnishing
Perfect
I must not have varnished you must not have varnished he must not have varnished we must not have varnished you must not have varnished they must not have varnished
V-ing perfect
I must not have been varnishing you must not have been varnishing he must not have been varnishing we must not have been varnishing you must not have been varnishing they must not have been varnishing
Interrogative form
Simple form
must I varnish? must you varnish? must he varnish? must we varnish? must you varnish? must they varnish?
V-ing form
must I be varnishing? must you be varnishing? must he be varnishing? must we be varnishing? must you be varnishing? must they be varnishing?
Perfect
must I have varnished? must you have varnished? must he have varnished? must we have varnished? must you have varnished? must they have varnished?
V-ing perfect
must I have been varnishing? must you have been varnishing? must he have been varnishing? must we have been varnishing? must you have been varnishing? must they have been varnishing?
Interro-negative form
Simple form
must I not varnish? must you not varnish? must he not varnish? must we not varnish? must you not varnish? must they not varnish?
V-ing form
must I not be varnishing? must you not be varnishing? must he not be varnishing? must we not be varnishing? must you not be varnishing? must they not be varnishing?
Perfect
must I not have varnished? must you not have varnished? must he not have varnished? must we not have varnished? must you not have varnished? must they not have varnished?
V-ing perfect
must I not have been varnishing? must you not have been varnishing? must he not have been varnishing? must we not have been varnishing? must you not have been varnishing? must they not have been varnishing?