English verb conjugation
MUST OVERREFINE

Regular verb: overrefine - overrefined - overrefined

Affirmation

Simple form	V-ing form
I must overrefine you must overrefine he must overrefine we must overrefine you must overrefine they must overrefine	I must be overrefining you must be overrefining he must be overrefining we must be overrefining you must be overrefining they must be overrefining
Perfect	V-ing perfect
I must have overrefined you must have overrefined he must have overrefined we must have overrefined you must have overrefined they must have overrefined	I must have been overrefining you must have been overrefining he must have been overrefining we must have been overrefining you must have been overrefining they must have been overrefining

Negation

Simple form	V-ing form
I mustn't overrefine you mustn't overrefine he mustn't overrefine we mustn't overrefine you mustn't overrefine they mustn't overrefine	I mustn't be overrefining you mustn't be overrefining he mustn't be overrefining we mustn't be overrefining you mustn't be overrefining they mustn't be overrefining
Perfect	V-ing perfect
I mustn't have overrefined you mustn't have overrefined he mustn't have overrefined we mustn't have overrefined you mustn't have overrefined they mustn't have overrefined	I mustn't have been overrefining you mustn't have been overrefining he mustn't have been overrefining we mustn't have been overrefining you mustn't have been overrefining they mustn't have been overrefining

Interrogative form

Simple form	V-ing form
must I overrefine? must you overrefine? must he overrefine? must we overrefine? must you overrefine? must they overrefine?	must I be overrefining? must you be overrefining? must he be overrefining? must we be overrefining? must you be overrefining? must they be overrefining?
Perfect	V-ing perfect
must I have overrefined? must you have overrefined? must he have overrefined? must we have overrefined? must you have overrefined? must they have overrefined?	must I have been overrefining? must you have been overrefining? must he have been overrefining? must we have been overrefining? must you have been overrefining? must they have been overrefining?

Interro-negative form

Simple form	V-ing form
mustn't I overrefine? mustn't you overrefine? mustn't he overrefine? mustn't we overrefine? mustn't you overrefine? mustn't they overrefine?	mustn't I be overrefining? mustn't you be overrefining? mustn't he be overrefining? mustn't we be overrefining? mustn't you be overrefining? mustn't they be overrefining?
Perfect	V-ing perfect
mustn't I have overrefined? mustn't you have overrefined? mustn't he have overrefined? mustn't we have overrefined? mustn't you have overrefined? mustn't they have overrefined?	mustn't I have been overrefining? mustn't you have been overrefining? mustn't he have been overrefining? mustn't we have been overrefining? mustn't you have been overrefining? mustn't they have been overrefining?