Conjugación del verbo inglés
MUST REGAIN

Verbo regular: regain - regained - regained

Afirmación

Forma simple	Forma con V-ing
I must regain you must regain she must regain we must regain you must regain they must regain	I must be regaining you must be regaining she must be regaining we must be regaining you must be regaining they must be regaining
Perfecto	Perfecto con V-ing
I must have regained you must have regained she must have regained we must have regained you must have regained they must have regained	I must have been regaining you must have been regaining she must have been regaining we must have been regaining you must have been regaining they must have been regaining

Negación

Forma simple	Forma con V-ing
I mustn't regain you mustn't regain she mustn't regain we mustn't regain you mustn't regain they mustn't regain	I mustn't be regaining you mustn't be regaining she mustn't be regaining we mustn't be regaining you mustn't be regaining they mustn't be regaining
Perfecto	Perfecto con V-ing
I mustn't have regained you mustn't have regained she mustn't have regained we mustn't have regained you mustn't have regained they mustn't have regained	I mustn't have been regaining you mustn't have been regaining she mustn't have been regaining we mustn't have been regaining you mustn't have been regaining they mustn't have been regaining

Forma interrogativa

Forma simple	Forma con V-ing
must I regain? must you regain? must she regain? must we regain? must you regain? must they regain?	must I be regaining? must you be regaining? must she be regaining? must we be regaining? must you be regaining? must they be regaining?
Perfecto	Perfecto con V-ing
must I have regained? must you have regained? must she have regained? must we have regained? must you have regained? must they have regained?	must I have been regaining? must you have been regaining? must she have been regaining? must we have been regaining? must you have been regaining? must they have been regaining?

Forma interro-negativa

Forma simple	Forma con V-ing
mustn't I regain? mustn't you regain? mustn't she regain? mustn't we regain? mustn't you regain? mustn't they regain?	mustn't I be regaining? mustn't you be regaining? mustn't she be regaining? mustn't we be regaining? mustn't you be regaining? mustn't they be regaining?
Perfecto	Perfecto con V-ing
mustn't I have regained? mustn't you have regained? mustn't she have regained? mustn't we have regained? mustn't you have regained? mustn't they have regained?	mustn't I have been regaining? mustn't you have been regaining? mustn't she have been regaining? mustn't we have been regaining? mustn't you have been regaining? mustn't they have been regaining?