When to Use ' and When to Use 'S?

Five Ways to Use "S" at the End of a Noun or Verb
  1. Use "s" or "es" to show plurality in count nouns. ...
  2. Use "s" for present tense subject/verb agreement. ...
  3. Use an apostrophe followed by "s" ('s) to show that a singular noun belongs to someone or something.

Is it Chris's or Chris '?

In school, it is common to be taught to write “Chris'” when talking about something that belongs to Chris. When we are talking, we say Chris's when referring to something that belongs to Chris. While both are technically correct, the main difference is in the required style guide.

What are the 3 Uses of apostrophe?

The apostrophe has three uses: 1) to form possessive nouns; 2) to show the omission of letters; and 3) to indicate plurals of letters, numbers, and symbols. ​Do not ​use apostrophes to form possessive ​pronouns ​(i.e. ​his​/​her ​computer) or ​noun ​plurals that are not possessives.

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.