Asit ta- [she pauses, licks her lips, breathes out. tries again] Asit tal-eb.
[Why is it so important to get the words right, to say them with enough weight that they will stay in her mind, like those songs she learned as a child, the ones she remembers even now?
Sansa isn't sure -- she only knows the words... hold meaning for him, and treating them with anything less would be disrespectful.]
... it means that there are things that will happen, ones that you can't change. [Again, a question without being posed as one; did she understand it correctly or not? She doesn't know.]