If what you're asking for is to translate it, the answer is
"Nosotros no podemos encontrar nuestras llaves.
La computadora de mi hermana está rota.
No tengo más leche."
Answer Me encantan las películas, pero mis favoritas son las de acción porque son las más interesantes y las más dramáticas.
Spymore
I think it is
Masculine: el, los, un and unos
Feminine: la, las, una and unas
Edit: I did not at first see that it was Spanish. It's very similar to French.
If it was French, this would be your answer: "Tu tenes una familia grande."
Explanation:
Tuner is an -er verb.
To conjugate Tener remove the -er and replace with the correct ending for the form of the verb you are using:
Singular. Plural
Je tene (-e) Nous tenons (-ons)
Tu tenes (-es) Vous tenez (-ez)
Il/Elle/Ont tene (-e) Ils/elles tenont(-ont)
Although verbs most likely are different in Spanish, I hope my answer still may have been helpful.