Conjugación del verbo inglés
MAY ASCERTAIN

Verbo regular: ascertain - ascertained - ascertained

Afirmación

Forma simple	Forma con V-ing
I may ascertain you may ascertain he may ascertain we may ascertain you may ascertain they may ascertain	I may be ascertaining you may be ascertaining he may be ascertaining we may be ascertaining you may be ascertaining they may be ascertaining
Perfecto	Perfecto con V-ing
I may have ascertained you may have ascertained he may have ascertained we may have ascertained you may have ascertained they may have ascertained	I may have been ascertaining you may have been ascertaining he may have been ascertaining we may have been ascertaining you may have been ascertaining they may have been ascertaining

Negación

Forma simple	Forma con V-ing
I may not ascertain you may not ascertain he may not ascertain we may not ascertain you may not ascertain they may not ascertain	I may not be ascertaining you may not be ascertaining he may not be ascertaining we may not be ascertaining you may not be ascertaining they may not be ascertaining
Perfecto	Perfecto con V-ing
I may not have ascertained you may not have ascertained he may not have ascertained we may not have ascertained you may not have ascertained they may not have ascertained	I may not have been ascertaining you may not have been ascertaining he may not have been ascertaining we may not have been ascertaining you may not have been ascertaining they may not have been ascertaining

Forma interrogativa

Forma simple	Forma con V-ing
may I ascertain? may you ascertain? may he ascertain? may we ascertain? may you ascertain? may they ascertain?	may I be ascertaining? may you be ascertaining? may he be ascertaining? may we be ascertaining? may you be ascertaining? may they be ascertaining?
Perfecto	Perfecto con V-ing
may I have ascertained? may you have ascertained? may he have ascertained? may we have ascertained? may you have ascertained? may they have ascertained?	may I have been ascertaining? may you have been ascertaining? may he have been ascertaining? may we have been ascertaining? may you have been ascertaining? may they have been ascertaining?

Forma interro-negativa

Forma simple	Forma con V-ing
may I not ascertain? may you not ascertain? may he not ascertain? may we not ascertain? may you not ascertain? may they not ascertain?	may I not be ascertaining? may you not be ascertaining? may he not be ascertaining? may we not be ascertaining? may you not be ascertaining? may they not be ascertaining?
Perfecto	Perfecto con V-ing
may I not have ascertained? may you not have ascertained? may he not have ascertained? may we not have ascertained? may you not have ascertained? may they not have ascertained?	may I not have been ascertaining? may you not have been ascertaining? may he not have been ascertaining? may we not have been ascertaining? may you not have been ascertaining? may they not have been ascertaining?