English verb conjugation
SHALL ASCERTAIN

Regular verb: ascertain - ascertained - ascertained

Affirmation

Simple form	V-ing form
I shall ascertain you shall ascertain he shall ascertain we shall ascertain you shall ascertain they shall ascertain	I shall be ascertaining you shall be ascertaining he shall be ascertaining we shall be ascertaining you shall be ascertaining they shall be ascertaining
Perfect	V-ing perfect
I shall have ascertained you shall have ascertained he shall have ascertained we shall have ascertained you shall have ascertained they shall have ascertained	I shall have been ascertaining you shall have been ascertaining he shall have been ascertaining we shall have been ascertaining you shall have been ascertaining they shall have been ascertaining

Negation

Simple form	V-ing form
I shall not ascertain you shall not ascertain he shall not ascertain we shall not ascertain you shall not ascertain they shall not ascertain	I shall not be ascertaining you shall not be ascertaining he shall not be ascertaining we shall not be ascertaining you shall not be ascertaining they shall not be ascertaining
Perfect	V-ing perfect
I shall not have ascertained you shall not have ascertained he shall not have ascertained we shall not have ascertained you shall not have ascertained they shall not have ascertained	I shall not have been ascertaining you shall not have been ascertaining he shall not have been ascertaining we shall not have been ascertaining you shall not have been ascertaining they shall not have been ascertaining

Interrogative form

Simple form	V-ing form
shall I ascertain? shall you ascertain? shall he ascertain? shall we ascertain? shall you ascertain? shall they ascertain?	shall I be ascertaining? shall you be ascertaining? shall he be ascertaining? shall we be ascertaining? shall you be ascertaining? shall they be ascertaining?
Perfect	V-ing perfect
shall I have ascertained? shall you have ascertained? shall he have ascertained? shall we have ascertained? shall you have ascertained? shall they have ascertained?	shall I have been ascertaining? shall you have been ascertaining? shall he have been ascertaining? shall we have been ascertaining? shall you have been ascertaining? shall they have been ascertaining?

Interro-negative form

Simple form	V-ing form
shall I not ascertain? shall you not ascertain? shall he not ascertain? shall we not ascertain? shall you not ascertain? shall they not ascertain?	shall I not be ascertaining? shall you not be ascertaining? shall he not be ascertaining? shall we not be ascertaining? shall you not be ascertaining? shall they not be ascertaining?
Perfect	V-ing perfect
shall I not have ascertained? shall you not have ascertained? shall he not have ascertained? shall we not have ascertained? shall you not have ascertained? shall they not have ascertained?	shall I not have been ascertaining? shall you not have been ascertaining? shall he not have been ascertaining? shall we not have been ascertaining? shall you not have been ascertaining? shall they not have been ascertaining?