Formal:
* "Kaʻu keiki kāne" (kah-oo keh-kee kah-neh) - This literally means "my male child" and is the most formal way to say "my son."
Informal:
* "Koʻu keiki kāne" (koh-oo keh-kee kah-neh) - This is a slightly less formal version of the previous phrase.
* "Koʻu keiki" (koh-oo keh-kee) - This literally means "my child" and can be used for both sons and daughters.
* "Koʻu kāne" (koh-oo kah-neh) - This literally means "my male," and while it is informal, it can be used affectionately.
Specific to the son:
* You can also use the son's name and add "koʻu" (koh-oo) before it to indicate "my." For example, if your son's name is "Kai," you could say "Koʻu Kai" (koh-oo kai).
Remember that Hawaiian language is very nuanced, and the best way to say "my son" will depend on your relationship with the person you are speaking to.