For a project I have to answer the question: Que te/les fue?. I put my answer as: Perdimos nuestra primera partida de tenis. ----> I'm not entirely sure if that is how you correctly say "we lost our first tennis match" If it isn't then tell me what I should do to correct my mistake.

Your answer, "Perdimos nuestra primera partida de tenis," is indeed a correct translation for "We lost our first tennis match." Great job!

To further explain how to arrive at this translation, let's break it down:

1. "Perdimos" is the conjugated form of the verb "perder," which means "to lose." The subject pronoun "we" is implied in the ending "-imos" (the "-mos" part of the ending indicates the first-person plural form).

2. "Nuestra" is the possessive adjective that means "our," indicating possession of the match.

3. "Primera" is the adjective meaning "first," indicating the order of the match.

4. "Partida" is the noun for "match" in tennis.

Therefore, "Perdimos nuestra primera partida de tenis" properly conveys the intended meaning. Well done!