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Other forms without ? | remove negation | female gender | remove contraction
Modal : no | may | might | can | could | shall | should | will | would | must | ought to

English verb conjugation TO ASCERTAIN

Regular verb: ascertain - ascertained - ascertained

Indicative

Present
don't I ascertain?
don't you ascertain?
doesn't he ascertain?
don't we ascertain?
don't you ascertain?
don't they ascertain?
Present continuous
am I not ascertaining?
aren't you ascertaining?
isn't he ascertaining?
aren't we ascertaining?
aren't you ascertaining?
aren't they ascertaining?
Preterite
didn't I ascertain?
didn't you ascertain?
didn't he ascertain?
didn't we ascertain?
didn't you ascertain?
didn't they ascertain?
Preterite continuous
wasn't I ascertaining?
weren't you ascertaining?
wasn't he ascertaining?
weren't we ascertaining?
weren't you ascertaining?
weren't they ascertaining?
Present perfect
haven't I ascertained?
haven't you ascertained?
hasn't he ascertained?
haven't we ascertained?
haven't you ascertained?
haven't they ascertained?
Present perfect continuous
haven't I been ascertaining?
haven't you been ascertaining?
hasn't he been ascertaining?
haven't we been ascertaining?
haven't you been ascertaining?
haven't they been ascertaining?
Pluperfect
hadn't I ascertained?
hadn't you ascertained?
hadn't he ascertained?
hadn't we ascertained?
hadn't you ascertained?
hadn't they ascertained?
Pluperfect continuous
hadn't I been ascertaining?
hadn't you been ascertaining?
hadn't he been ascertaining?
hadn't we been ascertaining?
hadn't you been ascertaining?
hadn't they been ascertaining?
Future
won't I ascertain?
won't you ascertain?
won't he ascertain?
won't we ascertain?
won't you ascertain?
won't they ascertain?
Future continuous
won't I be ascertaining?
won't you be ascertaining?
won't he be ascertaining?
won't we be ascertaining?
won't you be ascertaining?
won't they be ascertaining?
Future perfect
won't I have ascertained?
won't you have ascertained?
won't he have ascertained?
won't we have ascertained?
won't you have ascertained?
won't they have ascertained?
Future perfect continuous
won't I have been ascertaining?
won't you have been ascertaining?
won't he have been ascertaining?
won't we have been ascertaining?
won't you have been ascertaining?
won't they have been ascertaining?

Conditional

Present
wouldn't I ascertain?
wouldn't you ascertain?
wouldn't he ascertain?
wouldn't we ascertain?
wouldn't you ascertain?
wouldn't they ascertain?
Present continuous
wouldn't I be ascertaining?
wouldn't you be ascertaining?
wouldn't he be ascertaining?
wouldn't we be ascertaining?
wouldn't you be ascertaining?
wouldn't they be ascertaining?
Past
wouldn't I have ascertained?
wouldn't you have ascertained?
wouldn't he have ascertained?
wouldn't we have ascertained?
wouldn't you have ascertained?
wouldn't they have ascertained?
Past continuous
wouldn't I have been ascertaining?
wouldn't you have been ascertaining?
wouldn't he have been ascertaining?
wouldn't we have been ascertaining?
wouldn't you have been ascertaining?
wouldn't they have been ascertaining?

Imperative

Imperative
-
-
-
 
 
 

Infinitive

Infinitive
to ascertain
 
 
 

Participle

Present
ascertaining
Past
ascertained