I must preestablish you must preestablish he must preestablish we must preestablish you must preestablish they must preestablish
Forme en V-ing
I must be preestablishing you must be preestablishing he must be preestablishing we must be preestablishing you must be preestablishing they must be preestablishing
Perfect
I must have preestablished you must have preestablished he must have preestablished we must have preestablished you must have preestablished they must have preestablished
Perfect en V-ing
I must have been preestablishing you must have been preestablishing he must have been preestablishing we must have been preestablishing you must have been preestablishing they must have been preestablishing
Négation
Forme simple
I mustn't preestablish you mustn't preestablish he mustn't preestablish we mustn't preestablish you mustn't preestablish they mustn't preestablish
Forme en V-ing
I mustn't be preestablishing you mustn't be preestablishing he mustn't be preestablishing we mustn't be preestablishing you mustn't be preestablishing they mustn't be preestablishing
Perfect
I mustn't have preestablished you mustn't have preestablished he mustn't have preestablished we mustn't have preestablished you mustn't have preestablished they mustn't have preestablished
Perfect en V-ing
I mustn't have been preestablishing you mustn't have been preestablishing he mustn't have been preestablishing we mustn't have been preestablishing you mustn't have been preestablishing they mustn't have been preestablishing
Forme interrogative
Forme simple
must I preestablish? must you preestablish? must he preestablish? must we preestablish? must you preestablish? must they preestablish?
Forme en V-ing
must I be preestablishing? must you be preestablishing? must he be preestablishing? must we be preestablishing? must you be preestablishing? must they be preestablishing?
Perfect
must I have preestablished? must you have preestablished? must he have preestablished? must we have preestablished? must you have preestablished? must they have preestablished?
Perfect en V-ing
must I have been preestablishing? must you have been preestablishing? must he have been preestablishing? must we have been preestablishing? must you have been preestablishing? must they have been preestablishing?
Forme interro-négative
Forme simple
mustn't I preestablish? mustn't you preestablish? mustn't he preestablish? mustn't we preestablish? mustn't you preestablish? mustn't they preestablish?
Forme en V-ing
mustn't I be preestablishing? mustn't you be preestablishing? mustn't he be preestablishing? mustn't we be preestablishing? mustn't you be preestablishing? mustn't they be preestablishing?
Perfect
mustn't I have preestablished? mustn't you have preestablished? mustn't he have preestablished? mustn't we have preestablished? mustn't you have preestablished? mustn't they have preestablished?
Perfect en V-ing
mustn't I have been preestablishing? mustn't you have been preestablishing? mustn't he have been preestablishing? mustn't we have been preestablishing? mustn't you have been preestablishing? mustn't they have been preestablishing?