ennegrecer
verbo transitivo Konjugation
[generalmente] Konjugation to blacken
[suj: nubes] Konjugation to darken
ennegrecerse
verbo pronominal Konjugation
[generalmente] to become blackened
[nublarse] Konjugation to darken, to grow dark
Complétez la séquence avec la proposition qui convient.
Voy a la playa y … en el mar.