English verb conjugation
MUST PREFORMULATE

Regular verb: preformulate - preformulated - preformulated

Affirmation

Simple form	V-ing form
I must preformulate you must preformulate she must preformulate we must preformulate you must preformulate they must preformulate	I must be preformulating you must be preformulating she must be preformulating we must be preformulating you must be preformulating they must be preformulating
Perfect	V-ing perfect
I must have preformulated you must have preformulated she must have preformulated we must have preformulated you must have preformulated they must have preformulated	I must have been preformulating you must have been preformulating she must have been preformulating we must have been preformulating you must have been preformulating they must have been preformulating

Negation

Simple form	V-ing form
I mustn't preformulate you mustn't preformulate she mustn't preformulate we mustn't preformulate you mustn't preformulate they mustn't preformulate	I mustn't be preformulating you mustn't be preformulating she mustn't be preformulating we mustn't be preformulating you mustn't be preformulating they mustn't be preformulating
Perfect	V-ing perfect
I mustn't have preformulated you mustn't have preformulated she mustn't have preformulated we mustn't have preformulated you mustn't have preformulated they mustn't have preformulated	I mustn't have been preformulating you mustn't have been preformulating she mustn't have been preformulating we mustn't have been preformulating you mustn't have been preformulating they mustn't have been preformulating

Interrogative form

Simple form	V-ing form
must I preformulate? must you preformulate? must she preformulate? must we preformulate? must you preformulate? must they preformulate?	must I be preformulating? must you be preformulating? must she be preformulating? must we be preformulating? must you be preformulating? must they be preformulating?
Perfect	V-ing perfect
must I have preformulated? must you have preformulated? must she have preformulated? must we have preformulated? must you have preformulated? must they have preformulated?	must I have been preformulating? must you have been preformulating? must she have been preformulating? must we have been preformulating? must you have been preformulating? must they have been preformulating?

Interro-negative form

Simple form	V-ing form
mustn't I preformulate? mustn't you preformulate? mustn't she preformulate? mustn't we preformulate? mustn't you preformulate? mustn't they preformulate?	mustn't I be preformulating? mustn't you be preformulating? mustn't she be preformulating? mustn't we be preformulating? mustn't you be preformulating? mustn't they be preformulating?
Perfect	V-ing perfect
mustn't I have preformulated? mustn't you have preformulated? mustn't she have preformulated? mustn't we have preformulated? mustn't you have preformulated? mustn't they have preformulated?	mustn't I have been preformulating? mustn't you have been preformulating? mustn't she have been preformulating? mustn't we have been preformulating? mustn't you have been preformulating? mustn't they have been preformulating?