Yaaleh Viyavo When Bentching

The following laws apply if you forgot to say Yaaleh Viyavo when bentching on Yom Tov or Chol Hamoed:

If you remembered before saying Hashem’s name at the end of the berachah, go back and say Yaaleh Viyavo.

If you remembered after saying Hashem’s name but before beginning the berachah of Hatov Vehameitiv, say the nusach printed in the siddur or bentcher.

If you only remembered after beginning the berachah of Hatov Vehameitiv, if it is during one of the first two Yom Tov meals (the night meal or the first day meal), go back to the beginning of bentching (even if you merely said the word “Boruch”). However, on Chol Hamoed and during the third Yom Tov meal, do not go back.