For words ending in sh ch s and x we add -es.
Names with s plural. For the plural we just add an s the Robinsons. The best advice is to choose a formula and stay consistent. Going with -s is the more common choice.
The name Smith becomes plural when we add an s to make Smiths. The plural form covers the singular meaning because its used as a class. Words Ending in sh ch s x and z.
For the plural possessive we follow with an apostrophe the Robinsons porch. So do a lot of proper nouns Mr. To form the plural of a name that ends.
I have one shoe. The general rule in modern English of pluralizing nouns with the suffixes -s and -es descends from Anglo-Saxon also known as Old English an early language that is distantly related to German. The Chicago Manual of Style the AP Stylebook Garners Modern American Usage and the Cambridge Guide to English Usage all say to make names that end with - s plural by adding - es and they make no exceptions for pronunciation.
Adding -s or -es to a noun to make it plural is the most common form of pluralization but there are many other plural noun rules that apply to words with certain endings. All other letters are consonants. Many common nouns end in the letter s lens cactus bus etc.
You have two cups. Plural but not possessive names. Find out why poets laureate and poet laureates are both acceptable.