http://www.englishclub.com/grammar/nouns-possessive.htm Nouns - Possessive 's http://www.englishclub.com/grammar/nouns-possessive.htm http://www.englishclub.com/grammar/nouns-possessive.htm http://www.englishclub.com/grammar/nouns-possessive.htm (e.g. “the boy’s ball”) A Guide to Possessive 's http://www.englishclub.com/grammar/nouns-possessive.htm (e.g. “the boy’s ball”)