Concept 6

Use apostrophes for possession and contractions; avoid apostrophes in plurals.

Core Idea

Apostrophes show possession or missing letters in contractions. They do not make a noun plural.

Understanding

Rule: ACT often places several similar-looking word forms side by side. Ask whether the word owns something, shortens something, or simply names more than one item.

If more than one person owns the thing together, the apostrophe usually comes after the plural noun. If you only need a plural, do not add an apostrophe at all.

Question

Worked Example

Which choice best completes the sentence?

"At the exhibit, visitors admired the two sculptors _____ newest pieces."

Select an answer to see the explanation