Conjugación del verbo inglés
MUST ALTER

Verbo regular: alter - altered - altered

Afirmación

Forma simple	Forma con V-ing
I must alter you must alter she must alter we must alter you must alter they must alter	I must be altering you must be altering she must be altering we must be altering you must be altering they must be altering
Perfecto	Perfecto con V-ing
I must have altered you must have altered she must have altered we must have altered you must have altered they must have altered	I must have been altering you must have been altering she must have been altering we must have been altering you must have been altering they must have been altering

Negación

Forma simple	Forma con V-ing
I mustn't alter you mustn't alter she mustn't alter we mustn't alter you mustn't alter they mustn't alter	I mustn't be altering you mustn't be altering she mustn't be altering we mustn't be altering you mustn't be altering they mustn't be altering
Perfecto	Perfecto con V-ing
I mustn't have altered you mustn't have altered she mustn't have altered we mustn't have altered you mustn't have altered they mustn't have altered	I mustn't have been altering you mustn't have been altering she mustn't have been altering we mustn't have been altering you mustn't have been altering they mustn't have been altering

Forma interrogativa

Forma simple	Forma con V-ing
must I alter? must you alter? must she alter? must we alter? must you alter? must they alter?	must I be altering? must you be altering? must she be altering? must we be altering? must you be altering? must they be altering?
Perfecto	Perfecto con V-ing
must I have altered? must you have altered? must she have altered? must we have altered? must you have altered? must they have altered?	must I have been altering? must you have been altering? must she have been altering? must we have been altering? must you have been altering? must they have been altering?

Forma interro-negativa

Forma simple	Forma con V-ing
mustn't I alter? mustn't you alter? mustn't she alter? mustn't we alter? mustn't you alter? mustn't they alter?	mustn't I be altering? mustn't you be altering? mustn't she be altering? mustn't we be altering? mustn't you be altering? mustn't they be altering?
Perfecto	Perfecto con V-ing
mustn't I have altered? mustn't you have altered? mustn't she have altered? mustn't we have altered? mustn't you have altered? mustn't they have altered?	mustn't I have been altering? mustn't you have been altering? mustn't she have been altering? mustn't we have been altering? mustn't you have been altering? mustn't they have been altering?