Hola, in Spanish level 4 for German speakers, the sentence “guckst du heute Abend einen Film?” is translated with “¿vais a ver una película esta noche?”, but would need to be translated like “¿vas a ver una película esta noche?”. Explanation: “Guckst Du…” is the second person Singular. “Vaís a ver…” is the second person Plural, whilst “Vas a ver…” is the second person Singular. Saludos, Michael
me voy
te vas
se va
nos vamos
os vaís
se van