

Estoy en casa.
[esˈtoj eŋ ˈkasa.]
I'm at home.
¿Vives en Sevilla?
[¿ˈbiβes en seˈβiʎa?]
Do you live in Seville?
El gato duerme en el sofá.
[el ˈɣato ˈðweɾme en el soˈfa.]
The cat sleeps on the sofa.
"en" is in the lesson "Prepositions" (Level 36), along with 12 other useful words. LinDuo has 180 topic lessons like this one, 2,369 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.