tā koutou
1. (determiner) your, yours (referring to one thing and to three or more people) - often followed by a noun but can stand without one.
(Te Kākano Textbook (Ed. 2): 52-56;)
Mā tā koutou hunaonga koe e whakahoki. / Your son-in-law will take you back.
See also tā
2. (determiner) you (several people) have (one thing).
(Te Kākano Textbook (Ed. 2): 108-110;)
3. Used in these ways listed above when the possessor has control of the relationship or is dominant, active or superior to what is possessed.
(Te Kākano Textbook (Ed. 2): 54-56, 140-141;)