Tabla verbos regulares O
| PRESENT | PAST | PARTICIPLE | INFINITIVO |
| obey | obeyed | obeyed | obedecer |
| observe | observed | observed | observar |
| obtain | obtained | obtained | obtener |
| occur | occurred | occurred | ocurrir |
| offer | offered | offered | ofrecer |
| oil | oiled | oiled | lubricar |
| omit | omitted | omitted | omitir |
| open | opened | opened | abrir |
| organize | organized | organized | organizar |
| overheat | overheated | overheated | recalentar |
| owe | owed | owed | deber |
| own | owned | owned | poseer |
Verbos en inglés