2. (particle) to, that - when followed by a verb ki te marks the infinitive indicating a purpose, wish, or effect. Used in this way if the second verb is in the active or is not a stative, or if the subject of the subordinate clause is the same as that of the main clause, i.e. the person, people, thing or things doing the actions in the two parts of the sentence are the same.
Kua haere ia ki te mahi. / She has gone to work.
(Te Kākano Textbook (Ed. 2): 14, 98;)
3. (particle) with, by - when preceded by a passive verb.
Horoia ōu ringaringa ki te hopi! / Wash your hands with soap!
(Te Pihinga Textbook (Ed. 2): 25;)