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