English verb conjugation
MUST POLISH

Regular verb: polish - polished - polished

Affirmation

Simple form	V-ing form
I must polish you must polish she must polish we must polish you must polish they must polish	I must be polishing you must be polishing she must be polishing we must be polishing you must be polishing they must be polishing
Perfect	V-ing perfect
I must have polished you must have polished she must have polished we must have polished you must have polished they must have polished	I must have been polishing you must have been polishing she must have been polishing we must have been polishing you must have been polishing they must have been polishing

Negation

Simple form	V-ing form
I mustn't polish you mustn't polish she mustn't polish we mustn't polish you mustn't polish they mustn't polish	I mustn't be polishing you mustn't be polishing she mustn't be polishing we mustn't be polishing you mustn't be polishing they mustn't be polishing
Perfect	V-ing perfect
I mustn't have polished you mustn't have polished she mustn't have polished we mustn't have polished you mustn't have polished they mustn't have polished	I mustn't have been polishing you mustn't have been polishing she mustn't have been polishing we mustn't have been polishing you mustn't have been polishing they mustn't have been polishing

Interrogative form

Simple form	V-ing form
must I polish? must you polish? must she polish? must we polish? must you polish? must they polish?	must I be polishing? must you be polishing? must she be polishing? must we be polishing? must you be polishing? must they be polishing?
Perfect	V-ing perfect
must I have polished? must you have polished? must she have polished? must we have polished? must you have polished? must they have polished?	must I have been polishing? must you have been polishing? must she have been polishing? must we have been polishing? must you have been polishing? must they have been polishing?

Interro-negative form

Simple form	V-ing form
mustn't I polish? mustn't you polish? mustn't she polish? mustn't we polish? mustn't you polish? mustn't they polish?	mustn't I be polishing? mustn't you be polishing? mustn't she be polishing? mustn't we be polishing? mustn't you be polishing? mustn't they be polishing?
Perfect	V-ing perfect
mustn't I have polished? mustn't you have polished? mustn't she have polished? mustn't we have polished? mustn't you have polished? mustn't they have polished?	mustn't I have been polishing? mustn't you have been polishing? mustn't she have been polishing? mustn't we have been polishing? mustn't you have been polishing? mustn't they have been polishing?