I must index you must index he must index we must index you must index they must index
Forma con V-ing
I must be indexing you must be indexing he must be indexing we must be indexing you must be indexing they must be indexing
Perfecto
I must have indexed you must have indexed he must have indexed we must have indexed you must have indexed they must have indexed
Perfecto con V-ing
I must have been indexing you must have been indexing he must have been indexing we must have been indexing you must have been indexing they must have been indexing
Negación
Forma simple
I mustn't index you mustn't index he mustn't index we mustn't index you mustn't index they mustn't index
Forma con V-ing
I mustn't be indexing you mustn't be indexing he mustn't be indexing we mustn't be indexing you mustn't be indexing they mustn't be indexing
Perfecto
I mustn't have indexed you mustn't have indexed he mustn't have indexed we mustn't have indexed you mustn't have indexed they mustn't have indexed
Perfecto con V-ing
I mustn't have been indexing you mustn't have been indexing he mustn't have been indexing we mustn't have been indexing you mustn't have been indexing they mustn't have been indexing
Forma interrogativa
Forma simple
must I index? must you index? must he index? must we index? must you index? must they index?
Forma con V-ing
must I be indexing? must you be indexing? must he be indexing? must we be indexing? must you be indexing? must they be indexing?
Perfecto
must I have indexed? must you have indexed? must he have indexed? must we have indexed? must you have indexed? must they have indexed?
Perfecto con V-ing
must I have been indexing? must you have been indexing? must he have been indexing? must we have been indexing? must you have been indexing? must they have been indexing?
Forma interro-negativa
Forma simple
mustn't I index? mustn't you index? mustn't he index? mustn't we index? mustn't you index? mustn't they index?
Forma con V-ing
mustn't I be indexing? mustn't you be indexing? mustn't he be indexing? mustn't we be indexing? mustn't you be indexing? mustn't they be indexing?
Perfecto
mustn't I have indexed? mustn't you have indexed? mustn't he have indexed? mustn't we have indexed? mustn't you have indexed? mustn't they have indexed?
Perfecto con V-ing
mustn't I have been indexing? mustn't you have been indexing? mustn't he have been indexing? mustn't we have been indexing? mustn't you have been indexing? mustn't they have been indexing?