If Plural We Add S Or Not

If plural we add s or not

 

Answer:

Explanation:Its not quite as arbitrary as it may seem. If a word ends in ‑s, ‑sh, ‑ch, ‑x, or ‑z, you add ‑es. Consider the examples below: ... Some single nouns ending in -s or -z require more than the -es to form their plural versions. To pluralize these nouns, you must double the -s or -z before adding the -es.