Writers sometimes stumble over how to make words plural. Here are two tricky situations:
1. Family and brand names. In both cases, you just add an “s” or an “es.” Never change the root word. For example, when you make “BlackBerry” plural, it should be “BlackBerrys” not “BlackBerries.”
Other examples: the Carters, the Joneses, the Gonzalezes.
2. Decades and other numbers. Add an “s,” not an apostrophe “s.” This is such a common mistake, and one you can easily avoid. For example, you wouldn’t write, “I miss music from the ’80’s,” but rather “the ’80s” or “the 1980s.”
The same rule applies to other numbers. Examples: Temperatures will be in the low 20s. There are five size 7s.