Here are some options you can use, depending on the context:
* Aroha ahau ki a koe: This is the most common and literal translation, meaning "I have love for you." It's a good general expression of love.
* Tangi ahau mo koe: This translates to "I yearn for you." It conveys a strong emotional attachment and longing.
* E aroha ana ahau ki a koe: This means "I am in love with you." It suggests a deeper, more romantic love.
You could also express your love through actions, gestures, and gifts. Ultimately, the best way to say "I love you" in Māori is to use the phrase that feels most genuine and heartfelt.