Exodus 12:34

12:34 So the people took their dough before the yeast was added, with their kneading troughs bound up in their clothing on their shoulders.

tn The imperfect tense after the adverb טֶרֶם (terem) is to be treated as a preterite: “before it was leavened,” or “before the yeast was added.” See GKC 314-15 §107.c.