Avoid using 's to form the possesive of a noun that does not name a person i H c Bách Khoa’s students Đạ ọ have the habit of singing karaoke late at night. Instead of: The students of i H c Bách Khoa Đạ ọ have the habit of singing karaoke late at night. Write: Avoid using 's to form the possesive of a noun that does not name a person Your foot’s bottom is soft and vulnerable to infections, cuts, and bruises. Instead of: The bottom of your foot is soft and vulnerable to infections, cuts, and bruises. Write: About author Hans Anderson  2007-Present: Lecturer at FPT Greenwich Programmes, FPT University.  2007: M.S., Computational Mathematics, University of Minnesota  2001: B.A., Computer Science, Gustavus Adolphus College, Saint Peter, MN . Instead of: The students of i H c Bách Khoa Đạ ọ have the habit of singing karaoke late at night. Write: Avoid using 's to form the possesive of a noun. Avoid using 's to form the possesive of a noun that does not name a person i H c Bách Khoa’s students Đạ ọ have the habit of singing karaoke