Change the narration: The old lady said to her son,”is it not your duty to help me in my old age?”:
- The old lady asked her son if it was not his duty to help her in her old age
- The old lady asker her son, that was it not his duty to help her in her old age
- The old lady asked her son if it were not his duty to have helped her in her old age.
- The old lady had asked her son if it was not his duty to help her in her old age.