tō rātou
1. (determiner) their (three or more people and referring to one thing) - often followed by a noun but can stand without one.
(Te Kākano Textbook (Ed. 2): 52-56;)
Kua huihui tō rātou iwi ki tō rātou marae. / Their tribal group has gathered on their marae.
See also tō
2. (determiner) they have (referring to one thing belonging to three or more people).
(Te Kākano Textbook (Ed. 2): 108-110;)
3. Used in these ways listed above when the possessor has no control of the relationship or is subordinate, passive or inferior to what is possessed.
(Te Kākano Textbook (Ed. 2): 54-56, 140-141;)