To ascertain in advance.
Infinitivepreascertain
Past simplepreascertained
Past participlepreascertained
-ing formpreascertaining
Full conjugation of the English verb to preascertain (past simple preascertained,
past participle preascertained):
present simple and continuous, past simple and continuous, present perfect, past perfect,
future, conditional, subjunctive and imperative, with all persons.
Indicative
Present simple
I
preascertain
you
preascertain
he/she/it
preascertains
we
preascertain
you
preascertain
they
preascertain
Present continuous
I
am preascertaining
you
are preascertaining
he/she/it
is preascertaining
we
are preascertaining
you
are preascertaining
they
are preascertaining
Present perfect
I
have preascertained
you
have preascertained
he/she/it
has preascertained
we
have preascertained
you
have preascertained
they
have preascertained
Present perfect continuous
I
have been preascertaining
you
have been preascertaining
he/she/it
has been preascertaining
we
have been preascertaining
you
have been preascertaining
they
have been preascertaining
Past simple
I
preascertained
you
preascertained
he/she/it
preascertained
we
preascertained
you
preascertained
they
preascertained
Past continuous
I
was preascertaining
you
were preascertaining
he/she/it
was preascertaining
we
were preascertaining
you
were preascertaining
they
were preascertaining
Past perfect
I
had preascertained
you
had preascertained
he/she/it
had preascertained
we
had preascertained
you
had preascertained
they
had preascertained
Past perfect continuous
I
had been preascertaining
you
had been preascertaining
he/she/it
had been preascertaining
we
had been preascertaining
you
had been preascertaining
they
had been preascertaining
Future simple
I
will preascertain
you
will preascertain
he/she/it
will preascertain
we
will preascertain
you
will preascertain
they
will preascertain
Future continuous
I
will be preascertaining
you
will be preascertaining
he/she/it
will be preascertaining
we
will be preascertaining
you
will be preascertaining
they
will be preascertaining
Future perfect
I
will have preascertained
you
will have preascertained
he/she/it
will have preascertained
we
will have preascertained
you
will have preascertained
they
will have preascertained
Future perfect continuous
I
will have been preascertaining
you
will have been preascertaining
he/she/it
will have been preascertaining
we
will have been preascertaining
you
will have been preascertaining
they
will have been preascertaining
Conditional
Present
I
would preascertain
you
would preascertain
he/she/it
would preascertain
we
would preascertain
you
would preascertain
they
would preascertain
Present continuous
I
would be preascertaining
you
would be preascertaining
he/she/it
would be preascertaining
we
would be preascertaining
you
would be preascertaining
they
would be preascertaining
Perfect
I
would have preascertained
you
would have preascertained
he/she/it
would have preascertained
we
would have preascertained
you
would have preascertained
they
would have preascertained
Perfect continuous
I
would have been preascertaining
you
would have been preascertaining
he/she/it
would have been preascertaining
we
would have been preascertaining
you
would have been preascertaining
they
would have been preascertaining
Subjunctive
Present
that I
preascertain
that you
preascertain
that he/she/it
preascertain
that we
preascertain
that you
preascertain
that they
preascertain
Past
if I
preascertained
if you
preascertained
if he/she/it
preascertained
if we
preascertained
if you
preascertained
if they
preascertained
Imperative
Affirmative
you
preascertain
we
let's preascertain
Negative
you
don't preascertain
we
let's not preascertain
Non-finite forms
Infinitive
to preascertain
Perfect infinitive
to have preascertained
Present participle / gerund
preascertaining
Past participle
preascertained
Conjugations: Wiktionary (via kaikki.org), adapted, licensed under CC BY-SA 4.0.