Prepositions:
* On (as in "on the table"): This is most commonly translated as "sobre"
* *El libro está sobre la mesa.* (The book is on the table.)
* On (as in "on Monday"): This can be translated as "en" or "el" depending on the context.
* *Voy a la playa en lunes.* (I'm going to the beach on Monday.)
* *Te veo el martes.* (I'll see you on Tuesday.)
* On (as in "on the bus"): This is also translated as "en"
* *Voy a la escuela en autobús.* (I go to school on the bus.)
* On (as in "on the radio"): This is translated as "en" or "por"
* *Escuché la canción en la radio.* (I heard the song on the radio.)
* *Lo escuché por la radio.* (I heard it on the radio.)
* On (as in "on time"): This is translated as "a tiempo"
* *Llegué a tiempo a la reunión.* (I arrived on time for the meeting.)
Other Meanings:
* On (as in "turn on the light"): This is translated as "encender"
* *Enciende la luz, por favor.* (Turn on the light, please.)
* On (as in "I'm on it"): This can be translated as "lo tengo" or "estoy en ello"
* *No te preocupes, lo tengo.* (Don't worry, I'm on it.)
* *No te preocupes, estoy en ello.* (Don't worry, I'm on it.)
Important Note: The best translation for "on" will depend on the specific context and the meaning you want to convey.