koutou
1. (pronoun) you (three or more people) - like all pronouns and personals, takes a when following ki, i, kei and hei but does not take a when used as the subject of the sentence. Never occurs after he, te and ngā.
(Te Kākano Textbook (Ed. 2): 13, 31-32, 52-56, 64-65;)
See also tā koutou
2. (pronoun) you and - used before ko followed by people's names.
(Te Kākano Textbook (Ed. 2): 13;)
Anei te pōro mā koutou ko Poia, ko Hirini. / Here's the ball for you, Poia and Sydney.