| advisable | recomendable |
| asleep | dormido |
| certain | cierto |
| clear | claro |
| doubtful | dudoso |
| fortunately | afortunadamente |
| let's hope that | ojalá |
| member | socio |
| necessary | necesario/preciso |
| obvious | obvio |
| perhaps | quizás |
| to be sleepy | tener sueño |
| to demand | exigir |
| to invent | inventar |
| to learn | aprender |
| to lend | prestar |
| to need | necesitar |
| to swim | nadar |
| to work | trabajar |
| world-wide | mundial |
| to lend | prestar |
| to need | necesitar |
| to swim | nadar |
| to work | trabajar |
| world-wide | mundial |