English verb conjugation
MUST REBUILD

Irregular verb: rebuild - rebuilt - rebuilt

Affirmation

Simple form	V-ing form
I must rebuild you must rebuild he must rebuild we must rebuild you must rebuild they must rebuild	I must be rebuilding you must be rebuilding he must be rebuilding we must be rebuilding you must be rebuilding they must be rebuilding
Perfect	V-ing perfect
I must have rebuilt you must have rebuilt he must have rebuilt we must have rebuilt you must have rebuilt they must have rebuilt	I must have been rebuilding you must have been rebuilding he must have been rebuilding we must have been rebuilding you must have been rebuilding they must have been rebuilding

Negation

Simple form	V-ing form
I mustn't rebuild you mustn't rebuild he mustn't rebuild we mustn't rebuild you mustn't rebuild they mustn't rebuild	I mustn't be rebuilding you mustn't be rebuilding he mustn't be rebuilding we mustn't be rebuilding you mustn't be rebuilding they mustn't be rebuilding
Perfect	V-ing perfect
I mustn't have rebuilt you mustn't have rebuilt he mustn't have rebuilt we mustn't have rebuilt you mustn't have rebuilt they mustn't have rebuilt	I mustn't have been rebuilding you mustn't have been rebuilding he mustn't have been rebuilding we mustn't have been rebuilding you mustn't have been rebuilding they mustn't have been rebuilding

Interrogative form

Simple form	V-ing form
must I rebuild? must you rebuild? must he rebuild? must we rebuild? must you rebuild? must they rebuild?	must I be rebuilding? must you be rebuilding? must he be rebuilding? must we be rebuilding? must you be rebuilding? must they be rebuilding?
Perfect	V-ing perfect
must I have rebuilt? must you have rebuilt? must he have rebuilt? must we have rebuilt? must you have rebuilt? must they have rebuilt?	must I have been rebuilding? must you have been rebuilding? must he have been rebuilding? must we have been rebuilding? must you have been rebuilding? must they have been rebuilding?

Interro-negative form

Simple form	V-ing form
mustn't I rebuild? mustn't you rebuild? mustn't he rebuild? mustn't we rebuild? mustn't you rebuild? mustn't they rebuild?	mustn't I be rebuilding? mustn't you be rebuilding? mustn't he be rebuilding? mustn't we be rebuilding? mustn't you be rebuilding? mustn't they be rebuilding?
Perfect	V-ing perfect
mustn't I have rebuilt? mustn't you have rebuilt? mustn't he have rebuilt? mustn't we have rebuilt? mustn't you have rebuilt? mustn't they have rebuilt?	mustn't I have been rebuilding? mustn't you have been rebuilding? mustn't he have been rebuilding? mustn't we have been rebuilding? mustn't you have been rebuilding? mustn't they have been rebuilding?