Learn Spanish (Latin America): Nuestra misión preparará la base en el desierto. - Our mission will prepare the base in the desert.

It is the future tense of the regular verb preparar (to prepare). To form the future tense of regular verbs, you do not remove the ending like you do in the present tense. Instead, you keep the whole infinitive (preparar) and add the future ending. Since nuestra misión acts as an 'it' (third-person singular), we add -á to get preparará.

Why is the accent mark on the last á in preparará so important?

It is crucial for pronunciation! The accent mark tells you to stress that final syllable (pre-pa-ra-RÁ). In the future tense, all endings except -emos have an accent mark. This ensures the spoken emphasis always falls heavily on the future ending rather than the original verb stem.

Why do we use Nuestra instead of Nuestro here?

The word nuestra (our) has to match the gender of the noun it describes, which is misión. As a helpful rule, almost all Spanish nouns ending in -ión (like misión, televisión, or canción) are feminine. Therefore, we must use the feminine form nuestra.

Could I say va a preparar instead of preparará?