Conjugación del verbo inglés
MAY ASCERTAIN

Verbo regular: ascertain - ascertained - ascertained

Afirmación

Forma simple	Forma con V-ing
I may ascertain you may ascertain she may ascertain we may ascertain you may ascertain they may ascertain	I may be ascertaining you may be ascertaining she 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 she 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 she 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 mayn't ascertain you mayn't ascertain she mayn't ascertain we mayn't ascertain you mayn't ascertain they mayn't ascertain	I mayn't be ascertaining you mayn't be ascertaining she mayn't be ascertaining we mayn't be ascertaining you mayn't be ascertaining they mayn't be ascertaining
Perfecto	Perfecto con V-ing
I mayn't have ascertained you mayn't have ascertained she mayn't have ascertained we mayn't have ascertained you mayn't have ascertained they mayn't have ascertained	I mayn't have been ascertaining you mayn't have been ascertaining she mayn't have been ascertaining we mayn't have been ascertaining you mayn't have been ascertaining they mayn't have been ascertaining

Forma interrogativa

Forma simple	Forma con V-ing
may I ascertain? may you ascertain? may she ascertain? may we ascertain? may you ascertain? may they ascertain?	may I be ascertaining? may you be ascertaining? may she 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 she 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 she 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
mayn't I ascertain? mayn't you ascertain? mayn't she ascertain? mayn't we ascertain? mayn't you ascertain? mayn't they ascertain?	mayn't I be ascertaining? mayn't you be ascertaining? mayn't she be ascertaining? mayn't we be ascertaining? mayn't you be ascertaining? mayn't they be ascertaining?
Perfecto	Perfecto con V-ing
mayn't I have ascertained? mayn't you have ascertained? mayn't she have ascertained? mayn't we have ascertained? mayn't you have ascertained? mayn't they have ascertained?	mayn't I have been ascertaining? mayn't you have been ascertaining? mayn't she have been ascertaining? mayn't we have been ascertaining? mayn't you have been ascertaining? mayn't they have been ascertaining?