Conjugación del verbo inglés
MUST PREESTABLISH

Verbo regular: preestablish - preestablished - preestablished

Afirmación

Forma simple	Forma con V-ing
I must preestablish you must preestablish she must preestablish we must preestablish you must preestablish they must preestablish	I must be preestablishing you must be preestablishing she must be preestablishing we must be preestablishing you must be preestablishing they must be preestablishing
Perfecto	Perfecto con V-ing
I must have preestablished you must have preestablished she must have preestablished we must have preestablished you must have preestablished they must have preestablished	I must have been preestablishing you must have been preestablishing she must have been preestablishing we must have been preestablishing you must have been preestablishing they must have been preestablishing

Negación

Forma simple	Forma con V-ing
I must not preestablish you must not preestablish she must not preestablish we must not preestablish you must not preestablish they must not preestablish	I must not be preestablishing you must not be preestablishing she must not be preestablishing we must not be preestablishing you must not be preestablishing they must not be preestablishing
Perfecto	Perfecto con V-ing
I must not have preestablished you must not have preestablished she must not have preestablished we must not have preestablished you must not have preestablished they must not have preestablished	I must not have been preestablishing you must not have been preestablishing she must not have been preestablishing we must not have been preestablishing you must not have been preestablishing they must not have been preestablishing

Forma interrogativa

Forma simple	Forma con V-ing
must I preestablish? must you preestablish? must she preestablish? must we preestablish? must you preestablish? must they preestablish?	must I be preestablishing? must you be preestablishing? must she be preestablishing? must we be preestablishing? must you be preestablishing? must they be preestablishing?
Perfecto	Perfecto con V-ing
must I have preestablished? must you have preestablished? must she have preestablished? must we have preestablished? must you have preestablished? must they have preestablished?	must I have been preestablishing? must you have been preestablishing? must she have been preestablishing? must we have been preestablishing? must you have been preestablishing? must they have been preestablishing?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not preestablish? must you not preestablish? must she not preestablish? must we not preestablish? must you not preestablish? must they not preestablish?	must I not be preestablishing? must you not be preestablishing? must she not be preestablishing? must we not be preestablishing? must you not be preestablishing? must they not be preestablishing?
Perfecto	Perfecto con V-ing
must I not have preestablished? must you not have preestablished? must she not have preestablished? must we not have preestablished? must you not have preestablished? must they not have preestablished?	must I not have been preestablishing? must you not have been preestablishing? must she not have been preestablishing? must we not have been preestablishing? must you not have been preestablishing? must they not have been preestablishing?