Sign In Get Started
Prepositions with nouns

“Of boy” or “for boy”

For a boy is common when talking about suitability or intended use. Of a boy appears in structures about possession, description, or relationships, such as the father of the boy.

Quick answer

Which form is correct?

Use for a boy when something is intended for, suitable for, or given to a boy. Use of the boy in phrases showing relationship or possession. Plain of boy is usually incomplete in standard English.

This bicycle is for a boy aged ten to twelve.
The teacher spoke to the boy after class.
The mother of the boy thanked the doctor.

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
for a boy

Suitability or intended use

Use for a boy when something is designed, chosen, or meant for a boy.

The film is suitable for boys over twelve.
2
of the boy

Relationship or possession

Use of the boy to connect someone or something to the boy.

The backpack of the boy was left on the bus.
3
noun + for the boy

Giving or benefit

Use for the boy to show a recipient or beneficiary.

She baked a cake for the boy next door.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
for boy
This game is for boys aged eight and up.
Shows intended user or suitability; an article is often needed before singular boy.
of boy
The phrase of boy is usually incomplete by itself.
Normally appears in larger structures such as friend of the boy.
for the boy
I saved a seat for the boy.
Shows benefit or intended recipient.
of the boy
The voice of the boy sounded familiar.
Shows relationship, possession, or description.

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Using of for purpose

Of does not normally mean intended for.

✕ This book is of boy readers. ✓ This book is for boy readers.

Leaving out articles with singular count nouns

Singular boy usually needs a, the, or another determiner.

✕ She bought a gift for boy. ✓ She bought a gift for a boy.

Quick practice

Choose the expression that matches the intended meaning.

1. This toy is designed ___ young boys.
2. The father ___ the boy arrived early.
3. She carried water ___ the boy after practice.

Check your sentence in context

Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.

Free to try · No signup required

Frequently asked questions

Can I say “for boy” without an article?

Usually no with a singular noun. English normally uses for a boy or for the boy.

Is “of the boy” formal?

It can sound formal or literary. In everyday English, possession with 's is often more natural, as in the boy's backpack.

What is a natural alternative to “of boy”?

Use a fuller structure such as friend of the boy, or rewrite with the boy's.

of, about, against, to or for racism? of, about, for, in or on friendship? of, about, for, on or to thing? of, about, for, to or with sex? of, about, on, to or for moon? "of access" or "with access"? "of accommodation" or "for accommodation"? "of accuracy" or "for accuracy"? "of action" or "in action"? "of actor", "with actor" or "by actor"? "of address" or "to address"? "of administration" or "in administration"?

Write with confidence in Linguix

Create a free account to check complete texts, apply suggestions, and save your documents.

Create a free account