New Zealand speaks English, so 'sweet' will be sweet in New Zealand. However, if you are asking 'how do you say sweet in Maori?', the answer is waiti.
'Ka pai', meaning 'very good' is a common and acceptable phrase to use.
He reka koe - you are sweet
Kia pai tō rā.
People in New Zealand speak English and say "goodbye" as you do. If you mean how do you say goodbye in the Maori Language, then it is "Haere Ra".
Tino pai (Actual translation is very good)
In Maori, "wai" can mean water, juice, or liquid.
Kia ora (keya- ora) is a casual greeting in Maori.
ka pai.
In Maori, you can say "morena" which means good evening.
Ka pai.
Kia manuia - Good luck
In Maori, you say "Kia kaha" which can be translated as "stay strong" or "good luck".
In Maori, you say "Morena" for Good afternoon.
You can say "soy maori".
how do I say," you will always have my heart "in maori
In Maori, "good night sweet dreams" can be translated to "po marie, moe moa."
Money in Maori is "moni."
In Maori, the word for light is "marama."
Potae is Maori for hat.