for example:-
1-He is eleven years old.
2- He is eleven-year-old.
Chosen Answer:
Number two is gramatically incorrect. Eleven refers to more than one, therefore year should be in it’s plural form.
by: Stephen Returns
on: 6th December 10
What is the difference in grammar between “eleven years old, and eleven-year-old? please?
Posted by Eleven2 on June 7th, 2012
Posted in Eleven2 FAQ 
Tags: chosen, december, difference, eleven, example, form, gramatically, grammar, incorrect, please, plural, refers, returns, stephen, year
2 should be “He is AN eleven-year-old”
Eleven-year-old is an OBJECT/PERSON.
He is Eleven years old is a DESCRIPTION OF AGE.
Hi, the first one is correct. The second one can be corrected by inserting “an” after “is” – in other words, it would read: He is an eleven-year-old.
An eleven-year-old refers to one individual, where eleven years old can be used for more than one child, as in: the children on the playground are all eleven years old.
I’m not sure but I think number one is used when you are answering the question ” how old are you?” but using number two HS when you are the one telling that the person’s age is 11
No1 is correct.
No2 is incorrect. You could say: He is an eleven-year-old.
Basically ‘eleven-year-old’ is a compound noun, not an adjectival phrase.
I’m sorry I don’t know anything about grammar. When I first read you question I thought you were trying to ask whats the difference in a 7 and 11 year old. I read it like 5 times until I relized what you really meant.
I thought that make you smile
Number two is gramatically incorrect. Eleven refers to more than one, therefore year should be in it’s plural form.