What is the singular possessive form of "boy"?

The singular possessive form of “boy” is “boy’s.” It shows that one boy owns, has, or is associated with something—for example, “the boy’s bicycle” or “the boy’s name.”

In English, most singular nouns form the possessive by adding an apostrophe followed by s. The noun “boy” already ends in a regular consonant sound, so it takes the standard ending: boy + ’s. The apostrophe is essential because it marks the possessive construction.

A common mix-up is confusing “boy’s” with “boys’.” “Boy’s” refers to one boy, while “boys’” is the plural possessive form, referring to something belonging to multiple boys, as in “the boys’ locker room.” “Boys” without an apostrophe is simply the plural of “boy.”

The same pattern applies to many singular nouns, including “girl’s,” “teacher’s,” and “student’s.” In contrast, possessive pronouns such as “his” and “theirs” do not use apostrophes; apostrophes in words like “it’s” usually indicate a contraction, not possession.