Here's a breakdown:
* Ua - This is a verb particle that indicates the action has been completed.
* ou - This is the first person singular pronoun, meaning "I".
* malamalama - This means "understand".
You can also use the phrase "Ou te malamalama," which means "I will understand" or "I do understand." This is a bit more formal than "Ua ou malamalama."
It's important to note that the context of the conversation will dictate which phrase is more appropriate.