Here's how you could use it:
* "He mau makaʻāina koʻu." (I have many friends.)
* "ʻO ia kaʻu makaʻāina ponoʻī." (He/She is my best friend.)
You can also use the word "hoa" which means "companion" or "associate" in a more formal context.
It's important to note that "makaʻāina" and "hoa" have slightly different connotations, and the appropriate choice depends on the context.