re: 21 Years Old Or 21-Year-Old? page 2
Hi there, why do some people put "21 years old or 21-year-old?" Can you tell me why and how to use it? Thank you
I am 21 years old.
I am 21-year-old.
He is 26 years old
I am 21 years old.
I am 21-year-old.
He is 26 years old
Comments (Page 2)
I am 21 year old.
which one is correct?
I am a 21-year-old.
Correct
I have 25 years' experience. - I have 25 years of experience.
Incorrect
He is 35 years' old. - He is 35 years of old.