Make these singular nouns into plurals (Note. You must type the whole word). Clue: When a singular noun ends in ‘f’ or ‘fe’ we change the “f” for “v” and add ‘es’ or ‘s’ to make it plural. Some ‘f’ endings do NOT change to ‘ves’ when they become plural (e.g. cliff changes to cliffs). Click on the ‘Finished’ button to check how many answers you have right.