“Each others” is used when you’re referring to the plural form of “each other.” However, there is no plural form of “each other,” so “each others” is actually an incorrect term that can’t be used. “Each other’s” is used when you refer to the singular possessive form of “each other,” which we’ll touch more on later.

However, you should point out to students that each other is treated as a singular pronoun and emphasizes two or more separate people. Each other’s is always correct, and each others’ is never correct.

Use others’ for plural possessive form, such as “The others’ opinions are very important to me.” Other’s acts as the singular possessive form. Each other’s is the correct possessive form of the word each other. One another is an acceptable alternative to each other. It simply means that everyone is involved.

The answer depends on whether “others” refers to the singular or plural possessive. If you are using each other (singular), then it is “each other’s.” If you are using the plural, then the apostrophe goes after the “s.”

Other’s or Others’ or Others? Other’s is the singular possessive form of other. E.g., “We must consider each other’s feelings.” Furthermore, the term others’ is the plural possessive. For example, “I passed, but the others’ results were terrible.” Finally, others is the standard plural form.