Here's how to use it:
* Bienvenido/bienvenida: This is the formal way to welcome someone, used for a person you don't know well or are showing respect to.
* Bienvenidos/bienvenidas: This is the plural form, used to welcome two or more people.
* Welcome to Colombia: This is "Bienvenido a Colombia" (formal) or "Bienvenida a Colombia" (formal)
You can also use "¡Hola! ¿Cómo estás?" which means "Hello! How are you?" as a friendly welcome.
Remember, Colombians are known for their warm and welcoming nature!