For example, Elaida can say "Elayne, after month you will want to run away and join the Travelling people", but if Elayne had responded "Hmm, that seems unlikely, I think you are perhaps exaggerating", Elaida wouldn't be able to reply "No, after a month you will literally want to run away and...
A lot of the oaths leave room for strange interpretations. For example, the oath to speak no word that is not true should prevent people from saying things that aren't true, but it doesn't - sarcasm and hyberbole are allowed (for example, we see Aes Sedai claim novices will want to run away and...