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