English verb conjugation
MUST PRESOLVE

Regular verb: presolve - presolved - presolved

Affirmation

Simple form	V-ing form
I must presolve you must presolve he must presolve we must presolve you must presolve they must presolve	I must be presolving you must be presolving he must be presolving we must be presolving you must be presolving they must be presolving
Perfect	V-ing perfect
I must have presolved you must have presolved he must have presolved we must have presolved you must have presolved they must have presolved	I must have been presolving you must have been presolving he must have been presolving we must have been presolving you must have been presolving they must have been presolving

Negation

Simple form	V-ing form
I mustn't presolve you mustn't presolve he mustn't presolve we mustn't presolve you mustn't presolve they mustn't presolve	I mustn't be presolving you mustn't be presolving he mustn't be presolving we mustn't be presolving you mustn't be presolving they mustn't be presolving
Perfect	V-ing perfect
I mustn't have presolved you mustn't have presolved he mustn't have presolved we mustn't have presolved you mustn't have presolved they mustn't have presolved	I mustn't have been presolving you mustn't have been presolving he mustn't have been presolving we mustn't have been presolving you mustn't have been presolving they mustn't have been presolving

Interrogative form

Simple form	V-ing form
must I presolve? must you presolve? must he presolve? must we presolve? must you presolve? must they presolve?	must I be presolving? must you be presolving? must he be presolving? must we be presolving? must you be presolving? must they be presolving?
Perfect	V-ing perfect
must I have presolved? must you have presolved? must he have presolved? must we have presolved? must you have presolved? must they have presolved?	must I have been presolving? must you have been presolving? must he have been presolving? must we have been presolving? must you have been presolving? must they have been presolving?

Interro-negative form

Simple form	V-ing form
mustn't I presolve? mustn't you presolve? mustn't he presolve? mustn't we presolve? mustn't you presolve? mustn't they presolve?	mustn't I be presolving? mustn't you be presolving? mustn't he be presolving? mustn't we be presolving? mustn't you be presolving? mustn't they be presolving?
Perfect	V-ing perfect
mustn't I have presolved? mustn't you have presolved? mustn't he have presolved? mustn't we have presolved? mustn't you have presolved? mustn't they have presolved?	mustn't I have been presolving? mustn't you have been presolving? mustn't he have been presolving? mustn't we have been presolving? mustn't you have been presolving? mustn't they have been presolving?