English verb conjugation
MUST SORT

Regular verb: sort - sorted - sorted

Affirmation

Simple form	V-ing form
I must sort you must sort he must sort we must sort you must sort they must sort	I must be sorting you must be sorting he must be sorting we must be sorting you must be sorting they must be sorting
Perfect	V-ing perfect
I must have sorted you must have sorted he must have sorted we must have sorted you must have sorted they must have sorted	I must have been sorting you must have been sorting he must have been sorting we must have been sorting you must have been sorting they must have been sorting

Negation

Simple form	V-ing form
I mustn't sort you mustn't sort he mustn't sort we mustn't sort you mustn't sort they mustn't sort	I mustn't be sorting you mustn't be sorting he mustn't be sorting we mustn't be sorting you mustn't be sorting they mustn't be sorting
Perfect	V-ing perfect
I mustn't have sorted you mustn't have sorted he mustn't have sorted we mustn't have sorted you mustn't have sorted they mustn't have sorted	I mustn't have been sorting you mustn't have been sorting he mustn't have been sorting we mustn't have been sorting you mustn't have been sorting they mustn't have been sorting

Interrogative form

Simple form	V-ing form
must I sort? must you sort? must he sort? must we sort? must you sort? must they sort?	must I be sorting? must you be sorting? must he be sorting? must we be sorting? must you be sorting? must they be sorting?
Perfect	V-ing perfect
must I have sorted? must you have sorted? must he have sorted? must we have sorted? must you have sorted? must they have sorted?	must I have been sorting? must you have been sorting? must he have been sorting? must we have been sorting? must you have been sorting? must they have been sorting?

Interro-negative form

Simple form	V-ing form
mustn't I sort? mustn't you sort? mustn't he sort? mustn't we sort? mustn't you sort? mustn't they sort?	mustn't I be sorting? mustn't you be sorting? mustn't he be sorting? mustn't we be sorting? mustn't you be sorting? mustn't they be sorting?
Perfect	V-ing perfect
mustn't I have sorted? mustn't you have sorted? mustn't he have sorted? mustn't we have sorted? mustn't you have sorted? mustn't they have sorted?	mustn't I have been sorting? mustn't you have been sorting? mustn't he have been sorting? mustn't we have been sorting? mustn't you have been sorting? mustn't they have been sorting?