1. thil a chuahtertu; e.g. What was the cause of his sickness = A zawtnak a chuahtertu zeidah a si?
2. sullam; e.g. You have a good cause to be angry = Thinhunnak dingah sullam ttha na ngei.
3. tinhmi; tuahmi; e.g. They fought for the cause of freedom = Luatnak an i tinhmi ruangah an doh.