(a) Use commas appropriately within sentences but avoid overuse.
(Example) Prefer I love you too rather than I love you, too.
(b) Commas are used when counting numbers or listing multiple items.
(Example) 1, 2, 3
(c) If a comma is used in titles of movies, song lyrics, etc., use it in the same position in the translation.
(d) Do not use a comma at the end of a sentence.
(Example) He/She said this is correct, (X) He/She said this is correct (O)