Indicative
Present
| I | happen |
| you | happen |
| he / she / it | happens |
| we | happen |
| they | happen |
| you (plural) | happen |
Past simple
| I | happenned |
| you | happenned |
| he / she / it | happenned |
| we | happenned |
| they | happenned |
| you (plural) | happenned |
Future simple
| I | will happen |
| you | will happen |
| he / she / it | will happen |
| we | will happen |
| they | will happen |
| you (plural) | will happen |
Present continuous
| I | am happenning |
| you | are happenning |
| he / she / it | is happenning |
| we | are happenning |
| they | are happenning |
| you (plural) | are happenning |
Past continuous
| I | was happenning |
| you | were happenning |
| he / she / it | was happenning |
| we | were happenning |
| they | were happenning |
| you (plural) | were happenning |
Future continuous
| I | will be happenning |
| you | will be happenning |
| he / she / it | will be happenning |
| we | will be happenning |
| they | will be happenning |
| you (plural) | will be happenning |
Present perfect
| I | have happenned |
| you | have happenned |
| he / she / it | has happenned |
| we | have happenned |
| they | have happenned |
| you (plural) | have happenned |
Past perfect
| I | had happenned |
| you | had happenned |
| he / she / it | had happenned |
| we | had happenned |
| they | had happenned |
| you (plural) | had happenned |
Future perfect
| I | will have happenned |
| you | will have happenned |
| he / she / it | will have happenned |
| we | will have happenned |
| they | will have happenned |
| you (plural) | will have happenned |
Conditional
Present
| I | would happen |
| you | would happen |
| he / she / it | would happen |
| we | would happen |
| they | would happen |
| you (plural) | would happen |
Conditional perfect
| I | would have happenned |
| you | would have happenned |
| he / she / it | would have happenned |
| we | would have happenned |
| they | would have happenned |
| you (plural) | would have happenned |
Subjunctive
Present
| I | happen |
| you | happen |
| he / she / it | happen |
| we | happen |
| they | happen |
| you (plural) | happen |
Imperative
Affirmative
| you | happen |
| we | let's happen |
| you (plural) | happen |