We (Edith Hope Fine and Judith Josephson) are the Grammar Patrol. Both of us taught for years and are now writers, with thirty plus books between us, including our two popular grammar guides, Nitty-Gritty Grammar and More Nitty-Gritty Grammar. For close to twenty years, we taught writing and grammar basics and now we blog about grammar for writers.

In October, we covered some hyphen basics. This month, more hyphen tips.

More Hyphen Uses

• With the names of compound numbers from 21–99 and written fractions:

thirty-three                           eighty-seventh          five-eighths

six and two-thirds                fifty-four and three-fourths

• With numbers showing age or time:

ten-year-old spelling champ                      18- to 22-year-old undergraduates

two- to three-year period                            a 47-year marriage

• with highways and to designate aircraft:

I-805                F-16

Hyphens with Verbs, Nouns, Adjectives

•  If you’re thinking “action,” skip the hyphen. Make most compound verbs two words.

Back up your computer documents.

Pick up your room.

• Link the words in compound nouns and adjectives, either as a single word or with a hyphen.

Take this offramp [noun] for the off-road [adjective] rally.

You can borrow my pickup [noun] to haul the manure.

Provide backup [noun] for the back-up [adjective] team.

(While most dictionaries list the noun backup as a single word, a few recognize back-up. Just don’t use the two-word verb “back up” when you mean the noun. Write “The spy called for backup” (or back-up), not “The spy called for back up.”

(You’ll find more on two-word verbs like these, called phrasal verbs, in More Nitty-Gritty Grammar, page 131, including a Calvin and Hobbes cartoon!)

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We (Edith Hope Fine and Judith Josephson) are the Grammar Patrol. Both of us taught for years and are now writers, with thirty plus books between us, including our two popular grammar guides, Nitty-Gritty Grammar and More Nitty-Gritty Grammar. For close to twenty years, we taught writing and grammar basics and now we blog about grammar for writers.

In a variation of Will Shakespeare’s oft-quoted phrase, “To hyphenate or not to hyphenate?—that is the question.”

We’ve chatted before on this blog about hyphens versus em dashes (—) and en dashes (–). See  Ems and Ens for Writers Tuesday, May 1st, 2012.

This month we’ll focus on the little guys, hyphens.

Hyphens (-) link words together and can help avoid confusion.

“Running mate” needs no hyphen, but does as an adjective, as in “running-mate criteria.” The hyphen shows that “mate” goes with “running,” not “criteria.” Think smoke-free airport, self-help books, cell-phone plans.

When to Use Hyphens        

• With some prefixes, especially when the root word is capitalized:

self-discovery, ex-president, pre-Oscar party, pre-Jurassic era, mid-January

• With blended double surnames:

Ochoa-Roberts                       Greenfield-Martin

• With compound modifiers:

a can’t-miss putt                      a first-ever book contract

Alas, hyphens don’t always stick to the rules. Different current dictionaries recognize both mouthwatering (no hyphen) and mouth-watering (with hyphen) as adjectives. Work-release has a hyphen; workroom does not. Witch-hunt, yes. Witchcraft, no.  Go figure!

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