[38:4] 1 tn The construction is the infinitive construct in a temporal clause, using the preposition and the subjective genitive suffix.
[38:4] 2 tn The verb is the imperative; it has no object “me” in the text.
[38:21] 3 tn The imperfect verb after the adverb אָז (’az, “then”) functions as a preterite: “you were born.” The line is sarcastic.