"Buenos días" (Good morning)
However, depending on the context, you could also use:
* "Por la mañana" (In the morning) - This is a more literal translation of "en la mañana."
* "De mañana" (In the morning) - This is another way to say "en la mañana."
* "Temprano" (Early) - If you want to emphasize that you're talking about the early morning.
* "Más tarde" (Later) - If you're referring to a specific time in the morning that is not the very beginning.
For example:
* "En la mañana, voy a trabajar." (In the morning, I go to work.)
* "Buenos días, ¿cómo estás?" (Good morning, how are you?)
* "Me gusta leer por la mañana." (I like to read in the morning.)
* "De mañana, el tráfico es horrible." (In the morning, the traffic is terrible.)
* "Temprano, el sol sale." (Early, the sun rises.)
* "Nos encontramos más tarde en la mañana." (We'll meet later in the morning.)