Kia ora ra e te iwi! I have a Patreon where I hope to add some additional value. If you'd like the kaupapa, and you appreciate this mahi, you can give a koha here:
Kia ora ki a koutou!
I thought I'd briefly touch on clauses of reason. I source my material this week from Ray Harlows A Maori Reference Grammar.
Whakatauki - To mahi o te tane paraeroa - the work of a warrior
[Maori Sayings and Proverbs, Murdoch Riley, 79-8]
Kupu/Kianga - Koi rarua ai koe! - With koi, indicating a narrow escape. [Te Wiremu, pg. 5]
Wetenga Reo: [A Maori Reference Grammar, Ray Harlow, pg. 223]
"Ka nui nga mihi ki a koe mōu i haere mai ki te tautoko i tenei mahi."
This sentence contains two clause: one expressing appreciation to the hearer, Ka nui nga mihi ki a koe, and the other giving the reason for this appreciation, mōu i haere mai ki te tautoko i tēnei mahi. This second clause, the clause of reason is constructed as described - its subject 'you' is placed first, introduced by the preposition mō.
Te Ngata example: "Ko a mātau mihi ki te komiti marae mo a rātau āwhina." [Te Ngata, search-term: "thanks"]