A modal. Can, be able, be capable of. Hence, indicates ability. Mo Ketur kan tam ta dume. Ketura said she will be able. Dumem. Not able. Na dumem. I cannot/will not be able. Dumjin. Is able. Am able. Yok tomnom. Nan dumjin yaji. It will not be beyond my ability. I am equal to the task/I will be able to do it.