Regular verb: ascertain - ascertained - ascertained
Present | Present continuous | Preterite | Preterite continuous |
I don't ascertain you don't ascertain he doesn't ascertain we don't ascertain you don't ascertain they don't ascertain | I'm not ascertaining you aren't ascertaining he isn't ascertaining we aren't ascertaining you aren't ascertaining they aren't ascertaining | I didn't ascertain you didn't ascertain he didn't ascertain we didn't ascertain you didn't ascertain they didn't ascertain | I wasn't ascertaining you weren't ascertaining he wasn't ascertaining we weren't ascertaining you weren't ascertaining they weren't ascertaining |
Present perfect | Present perfect continuous | Pluperfect | Pluperfect continuous |
I haven't ascertained you haven't ascertained he hasn't ascertained we haven't ascertained you haven't ascertained they haven't ascertained | I haven't been ascertaining you haven't been ascertaining he hasn't been ascertaining we haven't been ascertaining you haven't been ascertaining they haven't been ascertaining | I hadn't ascertained you hadn't ascertained he hadn't ascertained we hadn't ascertained you hadn't ascertained they hadn't ascertained | I hadn't been ascertaining you hadn't been ascertaining he hadn't been ascertaining we hadn't been ascertaining you hadn't been ascertaining they hadn't been ascertaining |
Future | Future continuous | Future perfect | Future perfect continuous |
I won't ascertain you won't ascertain he won't ascertain we won't ascertain you won't ascertain they won't ascertain | I won't be ascertaining you won't be ascertaining he won't be ascertaining we won't be ascertaining you won't be ascertaining they won't be ascertaining | I won't have ascertained you won't have ascertained he won't have ascertained we won't have ascertained you won't have ascertained they won't have ascertained | I won't have been ascertaining you won't have been ascertaining he won't have been ascertaining we won't have been ascertaining you won't have been ascertaining they won't have been ascertaining |
Present | Present continuous | Past | Past continuous |
I wouldn't ascertain you wouldn't ascertain he wouldn't ascertain we wouldn't ascertain you wouldn't ascertain they wouldn't ascertain | I wouldn't be ascertaining you wouldn't be ascertaining he wouldn't be ascertaining we wouldn't be ascertaining you wouldn't be ascertaining they wouldn't be ascertaining | I wouldn't have ascertained you wouldn't have ascertained he wouldn't have ascertained we wouldn't have ascertained you wouldn't have ascertained they wouldn't have ascertained | I wouldn't have been ascertaining you wouldn't have been ascertaining he wouldn't have been ascertaining we wouldn't have been ascertaining you wouldn't have been ascertaining they wouldn't have been ascertaining |
Infinitive | Imperative |
Infinitive | Imperative | ||
to ascertain | do not ascertain Let's not ascertain do not ascertain |
Present | Past | ||
ascertaining | ascertained |