English verb conjugation
MUST BURNISH

Regular verb: burnish - burnished - burnished

Affirmation

Simple form	V-ing form
I must burnish you must burnish he must burnish we must burnish you must burnish they must burnish	I must be burnishing you must be burnishing he must be burnishing we must be burnishing you must be burnishing they must be burnishing
Perfect	V-ing perfect
I must have burnished you must have burnished he must have burnished we must have burnished you must have burnished they must have burnished	I must have been burnishing you must have been burnishing he must have been burnishing we must have been burnishing you must have been burnishing they must have been burnishing

Negation

Simple form	V-ing form
I mustn't burnish you mustn't burnish he mustn't burnish we mustn't burnish you mustn't burnish they mustn't burnish	I mustn't be burnishing you mustn't be burnishing he mustn't be burnishing we mustn't be burnishing you mustn't be burnishing they mustn't be burnishing
Perfect	V-ing perfect
I mustn't have burnished you mustn't have burnished he mustn't have burnished we mustn't have burnished you mustn't have burnished they mustn't have burnished	I mustn't have been burnishing you mustn't have been burnishing he mustn't have been burnishing we mustn't have been burnishing you mustn't have been burnishing they mustn't have been burnishing

Interrogative form

Simple form	V-ing form
must I burnish? must you burnish? must he burnish? must we burnish? must you burnish? must they burnish?	must I be burnishing? must you be burnishing? must he be burnishing? must we be burnishing? must you be burnishing? must they be burnishing?
Perfect	V-ing perfect
must I have burnished? must you have burnished? must he have burnished? must we have burnished? must you have burnished? must they have burnished?	must I have been burnishing? must you have been burnishing? must he have been burnishing? must we have been burnishing? must you have been burnishing? must they have been burnishing?

Interro-negative form

Simple form	V-ing form
mustn't I burnish? mustn't you burnish? mustn't he burnish? mustn't we burnish? mustn't you burnish? mustn't they burnish?	mustn't I be burnishing? mustn't you be burnishing? mustn't he be burnishing? mustn't we be burnishing? mustn't you be burnishing? mustn't they be burnishing?
Perfect	V-ing perfect
mustn't I have burnished? mustn't you have burnished? mustn't he have burnished? mustn't we have burnished? mustn't you have burnished? mustn't they have burnished?	mustn't I have been burnishing? mustn't you have been burnishing? mustn't he have been burnishing? mustn't we have been burnishing? mustn't you have been burnishing? mustn't they have been burnishing?