Thanks for the detailed clarification on “my” vs. “mine” in joint-ownership contexts — this is a tricky one! I especially appreciated the point that “mine” is used only on its own (e.g., “That book is mine”) and shouldn’t be placed before a noun. So in the example given, “I so appreciate you taking my and Gregg’s child to school today” is far better than “mine and Gregg’s child”. And yes — saying “our child” would be even smoother when it applies. Great explanation!

Great breakdown of a tricky grammar question! I appreciated your clear explanation of why “mine” doesn’t work before a noun (e.g., “… child to school…”). You’ve shown why “my and Gregg’s child” (or better still, “our child”) sounds more natural than “mine and Gregg’s child”. Thanks for shedding light on this subtle distinction.