Regular verb: happen - happened - happened
Present | Present continuous | Preterite | Preterite continuous |
- - it doesn't happen - - - | - - it isn't happening - - - | - - it didn't happen - - - | - - it wasn't happening - - - |
Present perfect | Present perfect continuous | Pluperfect | Pluperfect continuous |
- - it hasn't happened - - - | - - it hasn't been happening - - - | - - it hadn't happened - - - | - - it hadn't been happening - - - |
Future | Future continuous | Future perfect | Future perfect continuous |
- - it won't happen - - - | - - it won't be happening - - - | - - it won't have happened - - - | - - it won't have been happening - - - |
Present | Present continuous | Past | Past continuous |
- - it wouldn't happen - - - | - - it wouldn't be happening - - - | - - it wouldn't have happened - - - | - - it wouldn't have been happening - - - |
Infinitive | Imperative |
Infinitive | Imperative | ||
to happen | - Let's not happen - |
Present | Past | ||
happening | happened |