English verb conjugation
MUST REATTAIN

Regular verb: reattain - reattained - reattained

Affirmation

Simple form	V-ing form
I must reattain you must reattain he must reattain we must reattain you must reattain they must reattain	I must be reattaining you must be reattaining he must be reattaining we must be reattaining you must be reattaining they must be reattaining
Perfect	V-ing perfect
I must have reattained you must have reattained he must have reattained we must have reattained you must have reattained they must have reattained	I must have been reattaining you must have been reattaining he must have been reattaining we must have been reattaining you must have been reattaining they must have been reattaining

Negation

Simple form	V-ing form
I mustn't reattain you mustn't reattain he mustn't reattain we mustn't reattain you mustn't reattain they mustn't reattain	I mustn't be reattaining you mustn't be reattaining he mustn't be reattaining we mustn't be reattaining you mustn't be reattaining they mustn't be reattaining
Perfect	V-ing perfect
I mustn't have reattained you mustn't have reattained he mustn't have reattained we mustn't have reattained you mustn't have reattained they mustn't have reattained	I mustn't have been reattaining you mustn't have been reattaining he mustn't have been reattaining we mustn't have been reattaining you mustn't have been reattaining they mustn't have been reattaining

Interrogative form

Simple form	V-ing form
must I reattain? must you reattain? must he reattain? must we reattain? must you reattain? must they reattain?	must I be reattaining? must you be reattaining? must he be reattaining? must we be reattaining? must you be reattaining? must they be reattaining?
Perfect	V-ing perfect
must I have reattained? must you have reattained? must he have reattained? must we have reattained? must you have reattained? must they have reattained?	must I have been reattaining? must you have been reattaining? must he have been reattaining? must we have been reattaining? must you have been reattaining? must they have been reattaining?

Interro-negative form

Simple form	V-ing form
mustn't I reattain? mustn't you reattain? mustn't he reattain? mustn't we reattain? mustn't you reattain? mustn't they reattain?	mustn't I be reattaining? mustn't you be reattaining? mustn't he be reattaining? mustn't we be reattaining? mustn't you be reattaining? mustn't they be reattaining?
Perfect	V-ing perfect
mustn't I have reattained? mustn't you have reattained? mustn't he have reattained? mustn't we have reattained? mustn't you have reattained? mustn't they have reattained?	mustn't I have been reattaining? mustn't you have been reattaining? mustn't he have been reattaining? mustn't we have been reattaining? mustn't you have been reattaining? mustn't they have been reattaining?