Commas in a Series

My son prefers pepperoni black olives, and extra cheese on his pizza.

My son prefers pepperoni, black olives, and extra cheese on his pizza.

My son prefers, pepperoni, black olives, and extra cheese on his pizza.

My son prefers pepperoni, black olives and extra cheese on his pizza.

The chefs enjoy creating pizza baking pizza and, eating pizza.

The chefs enjoy creating pizza baking, and, eating pizza.

The chefs enjoy creating pizza, baking pizza, and eating pizza.

The chefs enjoy creating pizza, baking pizza, and, eating pizza.

My daughter will cut the veggies, my son will mix the sauce, my husband will make the dough, and I will sprinkle the herbs on the pizza.

My daughter will cut the veggies my son will mix the sauce my husband will make the dough, and I will sprinkle the herbs on the pizza.

My daughter will cut the veggies, my son will mix the sauce, my husband will make the dough and I will sprinkle the herbs on the pizza.

My daughter will cut the veggies, my son will mix the sauce, my husband will make the dough, and, I will sprinkle the herbs on the pizza.