NCO Primary Leadership Subjects
Use apostrophes to form plurals, possessives, and contractions and as single
quotation marks when needed.
Read the rules and examples for using the apostrophe. Then apply the rules in the
practice that follows.
Use an apostrophe...
Add 's when the noun does not end in
Add just the apostrophe when the
noun ends in "s."
to show possession in compound words,
names of business firms, and words
Johnson and Johnson's products
showing joint possession. Make only the
Use an apostrophe with each noun to
Mary's and Margaret's dates
show separate possession
John's and David's families
Use an apostrophe on the final name
alone to show joint possession
Tom and Mary's house
to show possession for nouns ending in
for conscience' sake
ce, followed by a word beginning with s.
for acquaintance' sake
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