I will preascertain you will preascertain she will preascertain we will preascertain you will preascertain they will preascertain
V-ing form
I will be preascertaining you will be preascertaining she will be preascertaining we will be preascertaining you will be preascertaining they will be preascertaining
Perfect
I will have preascertained you will have preascertained she will have preascertained we will have preascertained you will have preascertained they will have preascertained
V-ing perfect
I will have been preascertaining you will have been preascertaining she will have been preascertaining we will have been preascertaining you will have been preascertaining they will have been preascertaining
Negation
Simple form
I will not preascertain you will not preascertain she will not preascertain we will not preascertain you will not preascertain they will not preascertain
V-ing form
I will not be preascertaining you will not be preascertaining she will not be preascertaining we will not be preascertaining you will not be preascertaining they will not be preascertaining
Perfect
I will not have preascertained you will not have preascertained she will not have preascertained we will not have preascertained you will not have preascertained they will not have preascertained
V-ing perfect
I will not have been preascertaining you will not have been preascertaining she will not have been preascertaining we will not have been preascertaining you will not have been preascertaining they will not have been preascertaining
Interrogative form
Simple form
will I preascertain? will you preascertain? will she preascertain? will we preascertain? will you preascertain? will they preascertain?
V-ing form
will I be preascertaining? will you be preascertaining? will she be preascertaining? will we be preascertaining? will you be preascertaining? will they be preascertaining?
Perfect
will I have preascertained? will you have preascertained? will she have preascertained? will we have preascertained? will you have preascertained? will they have preascertained?
V-ing perfect
will I have been preascertaining? will you have been preascertaining? will she have been preascertaining? will we have been preascertaining? will you have been preascertaining? will they have been preascertaining?
Interro-negative form
Simple form
will I not preascertain? will you not preascertain? will she not preascertain? will we not preascertain? will you not preascertain? will they not preascertain?
V-ing form
will I not be preascertaining? will you not be preascertaining? will she not be preascertaining? will we not be preascertaining? will you not be preascertaining? will they not be preascertaining?
Perfect
will I not have preascertained? will you not have preascertained? will she not have preascertained? will we not have preascertained? will you not have preascertained? will they not have preascertained?
V-ing perfect
will I not have been preascertaining? will you not have been preascertaining? will she not have been preascertaining? will we not have been preascertaining? will you not have been preascertaining? will they not have been preascertaining?