English verb conjugation
MUST BAN

Regular verb: ban - banned - banned

Affirmation

Simple form	V-ing form
I must ban you must ban she must ban we must ban you must ban they must ban	I must be banning you must be banning she must be banning we must be banning you must be banning they must be banning
Perfect	V-ing perfect
I must have banned you must have banned she must have banned we must have banned you must have banned they must have banned	I must have been banning you must have been banning she must have been banning we must have been banning you must have been banning they must have been banning

Negation

Simple form	V-ing form
I mustn't ban you mustn't ban she mustn't ban we mustn't ban you mustn't ban they mustn't ban	I mustn't be banning you mustn't be banning she mustn't be banning we mustn't be banning you mustn't be banning they mustn't be banning
Perfect	V-ing perfect
I mustn't have banned you mustn't have banned she mustn't have banned we mustn't have banned you mustn't have banned they mustn't have banned	I mustn't have been banning you mustn't have been banning she mustn't have been banning we mustn't have been banning you mustn't have been banning they mustn't have been banning

Interrogative form

Simple form	V-ing form
must I ban? must you ban? must she ban? must we ban? must you ban? must they ban?	must I be banning? must you be banning? must she be banning? must we be banning? must you be banning? must they be banning?
Perfect	V-ing perfect
must I have banned? must you have banned? must she have banned? must we have banned? must you have banned? must they have banned?	must I have been banning? must you have been banning? must she have been banning? must we have been banning? must you have been banning? must they have been banning?

Interro-negative form

Simple form	V-ing form
mustn't I ban? mustn't you ban? mustn't she ban? mustn't we ban? mustn't you ban? mustn't they ban?	mustn't I be banning? mustn't you be banning? mustn't she be banning? mustn't we be banning? mustn't you be banning? mustn't they be banning?
Perfect	V-ing perfect
mustn't I have banned? mustn't you have banned? mustn't she have banned? mustn't we have banned? mustn't you have banned? mustn't they have banned?	mustn't I have been banning? mustn't you have been banning? mustn't she have been banning? mustn't we have been banning? mustn't you have been banning? mustn't they have been banning?