English verb conjugation
MUST PREFORMAT

Regular verb: preformat - preformated - preformated

Affirmation

Simple form	V-ing form
I must preformat you must preformat she must preformat we must preformat you must preformat they must preformat	I must be preformating you must be preformating she must be preformating we must be preformating you must be preformating they must be preformating
Perfect	V-ing perfect
I must have preformated you must have preformated she must have preformated we must have preformated you must have preformated they must have preformated	I must have been preformating you must have been preformating she must have been preformating we must have been preformating you must have been preformating they must have been preformating

Negation

Simple form	V-ing form
I mustn't preformat you mustn't preformat she mustn't preformat we mustn't preformat you mustn't preformat they mustn't preformat	I mustn't be preformating you mustn't be preformating she mustn't be preformating we mustn't be preformating you mustn't be preformating they mustn't be preformating
Perfect	V-ing perfect
I mustn't have preformated you mustn't have preformated she mustn't have preformated we mustn't have preformated you mustn't have preformated they mustn't have preformated	I mustn't have been preformating you mustn't have been preformating she mustn't have been preformating we mustn't have been preformating you mustn't have been preformating they mustn't have been preformating

Interrogative form

Simple form	V-ing form
must I preformat? must you preformat? must she preformat? must we preformat? must you preformat? must they preformat?	must I be preformating? must you be preformating? must she be preformating? must we be preformating? must you be preformating? must they be preformating?
Perfect	V-ing perfect
must I have preformated? must you have preformated? must she have preformated? must we have preformated? must you have preformated? must they have preformated?	must I have been preformating? must you have been preformating? must she have been preformating? must we have been preformating? must you have been preformating? must they have been preformating?

Interro-negative form

Simple form	V-ing form
mustn't I preformat? mustn't you preformat? mustn't she preformat? mustn't we preformat? mustn't you preformat? mustn't they preformat?	mustn't I be preformating? mustn't you be preformating? mustn't she be preformating? mustn't we be preformating? mustn't you be preformating? mustn't they be preformating?
Perfect	V-ing perfect
mustn't I have preformated? mustn't you have preformated? mustn't she have preformated? mustn't we have preformated? mustn't you have preformated? mustn't they have preformated?	mustn't I have been preformating? mustn't you have been preformating? mustn't she have been preformating? mustn't we have been preformating? mustn't you have been preformating? mustn't they have been preformating?