Relative Pronouns Deep Dive: "Whose," "Where," "When," and "Whereby"

Master relative pronouns — whose, where, when, whereby — with clear rules for possession, place, time, and formal writing.

May 17, 2026 Updated on May 17, 2026 Nouns and Pronouns , Subject-Verb Agreement 6 min read

Relative pronouns connect clauses to nouns. Most students know who, which, that — but whose, where, when, and whereby cause confusion.

❌ The man which car was stolen reported it to the police.
✅ The man whose car was stolen reported it to the police.

❌ The place which I was born is a small village.
✅ The place where I was born is a small village.

This article explains how to choose the right relative word based on its role inside the clause.

Rule box: Choose the relative word by its role inside the clause, not just by the noun before it. Whose = possession. Where = place. When = time. Whereby = by which / through which (formal).

Whose shows possession. It can refer to people, animals, and things.

The man whose car was stolen reported it. (the car belongs to the man)
The book whose cover is red is mine. (the cover belongs to the book)
She is a teacher whose students admire her.
The company whose CEO resigned is struggling.

Common error: Using which for possession.

❌ The man which car was stolen…
✅ The man whose car was stolen…

❌ The house which roof is leaking…
✅ The house whose roof is leaking…

Where refers to a place. Use it when the relative clause needs an adverb of place.

This is the house where I grew up.
The restaurant where we met is now closed.
I visited the city where my parents were born.
The place where I was born is a small village.

Common error: Using which with a preposition instead of where.

❌ The place in which I was born… (correct but formal)
✅ The place where I was born… (more natural)

Both are correct, but where is more natural in most contexts.

When refers to a time. Use it when the relative clause needs an adverb of time.

I remember the day when we first met.
The time when he arrived was unexpected.
Summer is the season when most people travel.
The moment when she walked in, everyone stared.

Common error: Using where for time.

❌ The day where we met…
✅ The day when we met…

Whereby is a formal relative pronoun meaning by which or through which.

This is a system whereby users can apply online.
We need a process whereby complaints can be addressed.
The law whereby the tax was introduced has been repealed.

Whereby is used mainly in formal, legal, and academic writing. In everyday English, use by which.

Relative Word	Refers To	Role in Clause	Example
who	people	subject	The man who called you
whom	people	object	The man whom you called
which	things	subject/object	The book which I read
that	people/things	subject/object	The book that I read
whose	people/things	possession	The man whose car…
where	places	adverb of place	The house where I live
when	times	adverb of time	The day when we met
whereby	systems/methods	by which	A system whereby…

Does the clause need a possessive? → Use whose.
Does the clause refer to a place? → Use where.
Does the clause refer to a time? → Use when.
Does the clause mean “by which” (formal)? → Use whereby.
Is the relative word the subject, object, or adverb inside the clause? → Choose accordingly.

The man whose car was stolen reported it. (possession)
This is the house where I grew up. (place)
I remember the day when we met. (time)
A system whereby users can apply online. (by which — formal)
The book whose cover is torn is mine. (possession — thing)
The restaurant where we dined is closed. (place)
The moment when she arrived was perfect. (time)
The process whereby decisions are made is transparent. (formal)
She is a teacher whose students love her. (possession)
The city where I was born is beautiful. (place)

❌ The book which cover is torn…
✅ The book whose cover is torn…

Whose can refer to things as well as people.

❌ The day where we met…
✅ The day when we met…

Use when for time, where for place.

✅ This is a system whereby users can apply. (formal)
✅ This is a system that users can apply through. (less formal)

In everyday English, avoid whereby. Use that…through or which…by.

Wrong	Right	Why
The man which car…	The man whose car…	Whose for possession.
The place which I was born.	The place where I was born.	Where for place.
The day where we met.	The day when we met.	When for time.

Choose the correct relative pronoun.

The man ___ car was stolen reported it. (which / whose)
This is the house ___ I grew up. (where / which)
I remember the day ___ we met. (when / where)
Error spotting: The book which cover is torn.
Error spotting: The place which I was born is beautiful.
Error spotting: The day where we first met.
Fill in the blank: A system ___ users can apply online. (whereby / wherein)
Fill in the blank: The restaurant ___ we dined is closed. (where / which)
Rewrite correctly: The man which house was damaged.
Choose: The moment ___ she arrived was perfect. (when / where)

whose — possession.
where — place.
when — time.
The book whose cover is torn. — whose for things.
The place where I was born is beautiful. — where for place.
The day when we first met. — when for time.
whereby — formal, “by which.”
where — place.
The man whose house was damaged. — whose for possession.
when — time.

Rule: Whose = possession (people and things). Where = place. When = time. Whereby = by which (formal). Choose by the role inside the clause.

Memory trick: “Whose owns. Where places. When times. Whereby means ‘by which.’”

Revise these:

The man whose car was stolen. (possession)
The house where I grew up. (place)
The day when we met. (time)
A system whereby users can apply. (formal)

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