English verb conjugation
MUST RIGHTEN

Regular verb: righten - rightened - rightened

Affirmation

Simple form	V-ing form
I must righten you must righten he must righten we must righten you must righten they must righten	I must be rightening you must be rightening he must be rightening we must be rightening you must be rightening they must be rightening
Perfect	V-ing perfect
I must have rightened you must have rightened he must have rightened we must have rightened you must have rightened they must have rightened	I must have been rightening you must have been rightening he must have been rightening we must have been rightening you must have been rightening they must have been rightening

Negation

Simple form	V-ing form
I mustn't righten you mustn't righten he mustn't righten we mustn't righten you mustn't righten they mustn't righten	I mustn't be rightening you mustn't be rightening he mustn't be rightening we mustn't be rightening you mustn't be rightening they mustn't be rightening
Perfect	V-ing perfect
I mustn't have rightened you mustn't have rightened he mustn't have rightened we mustn't have rightened you mustn't have rightened they mustn't have rightened	I mustn't have been rightening you mustn't have been rightening he mustn't have been rightening we mustn't have been rightening you mustn't have been rightening they mustn't have been rightening

Interrogative form

Simple form	V-ing form
must I righten? must you righten? must he righten? must we righten? must you righten? must they righten?	must I be rightening? must you be rightening? must he be rightening? must we be rightening? must you be rightening? must they be rightening?
Perfect	V-ing perfect
must I have rightened? must you have rightened? must he have rightened? must we have rightened? must you have rightened? must they have rightened?	must I have been rightening? must you have been rightening? must he have been rightening? must we have been rightening? must you have been rightening? must they have been rightening?

Interro-negative form

Simple form	V-ing form
mustn't I righten? mustn't you righten? mustn't he righten? mustn't we righten? mustn't you righten? mustn't they righten?	mustn't I be rightening? mustn't you be rightening? mustn't he be rightening? mustn't we be rightening? mustn't you be rightening? mustn't they be rightening?
Perfect	V-ing perfect
mustn't I have rightened? mustn't you have rightened? mustn't he have rightened? mustn't we have rightened? mustn't you have rightened? mustn't they have rightened?	mustn't I have been rightening? mustn't you have been rightening? mustn't he have been rightening? mustn't we have been rightening? mustn't you have been rightening? mustn't they have been rightening?