In the second sentence, you would, making it four-year-old boy. This is because the phrase four year old is modifying the noun boy. If the sentence is simply stating that someone or something is so many years old, then don't use a hyphen: Her dad turned sixty years old today.26 abr 2013
Should age be hyphenated?
Summary. So to sum up, you hyphenate an age when it's a noun or when it's a modifier that comes before a noun. The main time you don't hyphenate an age is when it comes after the noun it modifies. Ages are like every other compound modifier that way: you hyphenate them before the noun but not after the noun.13 jun 2019
How do you write an age in an essay?
Use numerals for dates, times, and ages. For example, "October 27, 1986," "4 p.m.," or "37 years old." Spell out the number when writing out a time, such as "eleven o'clock."24 abr 2017
How do you hyphenate an 18 year old?
- Use hyphens for ages expressed as adjectives before a noun or as substitutes for a noun.
- Do not use hyphens when you are simply stating the age of something.
How do you hyphenate a 17 year old?
When to Hyphenate Year Old “Year old” should be hyphenated when it modifies a noun that follows it. That is, when the phrase is describing the age of a person, place, or thing, and it precedes that noun in a sentence, then it should be written as year-old.
Do you hyphenate eighteen year old?
The basic rule is, Use hyphens for ages expressed as adjectives before a noun or as substitutes for a noun. Do not use hyphens when you are simply stating the age of something.
How do you hyphenate ten-year-old?
Hyphenate ages when they are adjective phrases involving a unit of measurement: “Her ten-year-old car is beginning to give her trouble.” A girl can be a “ten-year-old” (“child” is implied).19 may 2016