How to Make Words Ending in S Possessive

Khan Academy

This concise grammar tutorial addresses a common point of confusion in English writing: how to form the possessive of singular nouns and names that already end in the letter 's'. The video features two narrators, David and Paige, who use handwritten examples on a blackboard to demonstrate that the standard rule—adding an apostrophe followed by an 's'—still applies to these words, just as it does for any other singular noun. The video explores key examples including proper names like "Jess" and "Texas," as well as common nouns like "bus." It visually breaks down the transformation from a phrase like "the air conditioning on this bus" to the possessive form "the bus's air conditioning." The narrators acknowledge that while the resulting words may look crowded with 's's, the additional letter is crucial for accurately representing how these possessives are pronounced in spoken English. For educators, this video serves as an excellent tool for clarifying a specific punctuation rule that students frequently misapply. It helps dismantle the misconception that an existing 's' at the end of a word precludes adding another one for possession. The clear, step-by-step visual examples make it easy to introduce or review this concept in upper elementary and middle school English Language Arts classrooms, supporting better mechanics in student writing.