I'll be preascertaining you'll be preascertaining he'll be preascertaining we'll be preascertaining you'll be preascertaining they'll be preascertaining
Perfect
I'll have preascertained you'll have preascertained he'll have preascertained we'll have preascertained you'll have preascertained they'll have preascertained
V-ing perfect
I'll have been preascertaining you'll have been preascertaining he'll have been preascertaining we'll have been preascertaining you'll have been preascertaining they'll have been preascertaining
Negation
Simple form
I won't preascertain you won't preascertain he won't preascertain we won't preascertain you won't preascertain they won't preascertain
V-ing form
I won't be preascertaining you won't be preascertaining he won't be preascertaining we won't be preascertaining you won't be preascertaining they won't be preascertaining
Perfect
I won't have preascertained you won't have preascertained he won't have preascertained we won't have preascertained you won't have preascertained they won't have preascertained
V-ing perfect
I won't have been preascertaining you won't have been preascertaining he won't have been preascertaining we won't have been preascertaining you won't have been preascertaining they won't have been preascertaining
Interrogative form
Simple form
will I preascertain? will you preascertain? will he preascertain? will we preascertain? will you preascertain? will they preascertain?
V-ing form
will I be preascertaining? will you be preascertaining? will he be preascertaining? will we be preascertaining? will you be preascertaining? will they be preascertaining?
Perfect
will I have preascertained? will you have preascertained? will he 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 he have been preascertaining? will we have been preascertaining? will you have been preascertaining? will they have been preascertaining?
Interro-negative form
Simple form
won't I preascertain? won't you preascertain? won't he preascertain? won't we preascertain? won't you preascertain? won't they preascertain?
V-ing form
won't I be preascertaining? won't you be preascertaining? won't he be preascertaining? won't we be preascertaining? won't you be preascertaining? won't they be preascertaining?
Perfect
won't I have preascertained? won't you have preascertained? won't he have preascertained? won't we have preascertained? won't you have preascertained? won't they have preascertained?
V-ing perfect
won't I have been preascertaining? won't you have been preascertaining? won't he have been preascertaining? won't we have been preascertaining? won't you have been preascertaining? won't they have been preascertaining?