Here "sons" stands for those who descended from Heth. See how you translated this in [Genesis 23:3](./03.md). AT: "The descendants of Heth" (See: [[rc://en/ta/man/translate/translate-names]])
The nominal adjective "dead" can be stated as a verb or simply as "wife." AT: "your wife who has died" or "your wife" (See: [[rc://en/ta/man/translate/figs-nominaladj]])