English verb conjugation
TO ASCERTAIN
Regular verb: ascertain - ascertained - ascertained
Present | Present continuous | Preterite | Preterite continuous |
| I ascertain you ascertain he ascertains we ascertain you ascertain they ascertain | I'm ascertaining you're ascertaining he's ascertaining we're ascertaining you're ascertaining they're ascertaining | I ascertained you ascertained he ascertained we ascertained you ascertained they ascertained | I was ascertaining you were ascertaining he was ascertaining we were ascertaining you were ascertaining they were ascertaining |
Present perfect | Present perfect continuous | Pluperfect | Pluperfect continuous |
| I've ascertained you've ascertained he's ascertained we've ascertained you've ascertained they've ascertained | I've been ascertaining you've been ascertaining he's been ascertaining we've been ascertaining you've been ascertaining they've been ascertaining | I'd ascertained you'd ascertained he'd ascertained we'd ascertained you'd ascertained they'd ascertained | I'd been ascertaining you'd been ascertaining he'd been ascertaining we'd been ascertaining you'd been ascertaining they'd been ascertaining |
Future | Future continuous | Future perfect | Future perfect continuous |
| I'll ascertain you'll ascertain he'll ascertain we'll ascertain you'll ascertain they'll ascertain | I'll be ascertaining you'll be ascertaining he'll be ascertaining we'll be ascertaining you'll be ascertaining they'll be ascertaining | I'll have ascertained you'll have ascertained he'll have ascertained we'll have ascertained you'll have ascertained they'll have ascertained | I'll have been ascertaining you'll have been ascertaining he'll have been ascertaining we'll have been ascertaining you'll have been ascertaining they'll have been ascertaining |
Present | Present continuous | Past | Past continuous |
| I'd ascertain you'd ascertain he'd ascertain we'd ascertain you'd ascertain they'd ascertain | I'd be ascertaining you'd be ascertaining he'd be ascertaining we'd be ascertaining you'd be ascertaining they'd be ascertaining | I'd have ascertained you'd have ascertained he'd have ascertained we'd have ascertained you'd have ascertained they'd have ascertained | I'd have been ascertaining you'd have been ascertaining he'd have been ascertaining we'd have been ascertaining you'd have been ascertaining they'd have been ascertaining |
Infinitive | Imperative |
Infinitive | Imperative | ||
| to ascertain | ascertain Let's ascertain ascertain |
Present | Past | ||
| ascertaining | ascertained |