CAUTION: It's = it is; can't = cannot.5.Use the apostrophe to form the possessive of a hyphenated word; add -'s after the last letter.Not: My mother-in-laws homeNot: My mother's-in-law homeBut: My mother-in-law 's home6.7.Add an apostrophe to abbreviations and letters and numbers to make them plural.AUTION: It's = it is; can't = cannot.5.Use the apostrophe to form the possessive of a hyphenated word; add -'s after the last letter.Not: My mother-in-laws homeNot: My mother's-in-law homeBut: My mother-in-law 's home6.7.
Fitness organizations, such as the International Sports Sciences Association, offer an online personal training program for those interested in becoming a personal trainer. The program can take from four to six weeks to complete. The time frame is an estimation based on the average time taken for past enrollees.
How to Make Exercise a Habit. There's an urban legend that it takes 21 days for something to become a habit, but there's little evidence to back up this claim. For exercise, it's probably more like six weeks, says Rebecca Woll, manager of personal training at Equinox in New York City.