must varnish
Regular verb: varnish - varnished- varnished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must varnish
you must varnish
he must varnish
we must varnish
you must varnish
they must varnish 	I must be varnishing
you must be varnishing
he must be varnishing
we must be varnishing
you must be varnishing
they must be varnishing	I must have varnished
you must have varnished
he must have varnished
we must have varnished
you must have varnished
they must have varnished	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 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't varnish
you mustn't varnish
he mustn't varnish
we mustn't varnish
you mustn't varnish
they mustn't varnish 	I mustn't be varnishing
you mustn't be varnishing
he mustn't be varnishing
we mustn't be varnishing
you mustn't be varnishing
they mustn't be varnishing	I mustn't have varnished
you mustn't have varnished
he mustn't have varnished
we mustn't have varnished
you mustn't have varnished
they mustn't have varnished	I mustn't have been varnishing
you mustn't have been varnishing
he mustn't have been varnishing
we mustn't have been varnishing
you mustn't have been varnishing
they mustn't have been varnishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I varnish?
must you varnish?
must he varnish?
must we varnish?
must you varnish?
must they varnish? 	must I be varnishing?
must you be varnishing?
must he be varnishing?
must we be varnishing?
must you be varnishing?
must they be varnishing? 	must I have varnished?
must you have varnished?
must he have varnished?
must we have varnished?
must you have varnished?
must they have varnished? 	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 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I varnish?
mustn't you varnish?
mustn't he varnish?
mustn't we varnish?
mustn't you varnish?
mustn't they varnish? 	mustn't I be varnishing?
mustn't you be varnishing?
mustn't he be varnishing?
mustn't we be varnishing?
mustn't you be varnishing?
mustn't they be varnishing? 	mustn't I have varnished?
mustn't you have varnished?
mustn't he have varnished?
mustn't we have varnished?
mustn't you have varnished?
mustn't they have varnished? 	mustn't I have been varnishing?
mustn't you have been varnishing?
mustn't he have been varnishing?
mustn't we have been varnishing?
mustn't you have been varnishing?
mustn't they have been varnishing?