Is "think of sb" formal or informal?

It is informal and used in everyday conversation.

Can I use "think of sb" in the past tense?

Yes, for example, "I thought of her yesterday."

What’s the difference between "think of" and "think about"?

"Think of" is usually brief or spontaneous, while "think about" suggests deeper thought.

Can I use "think of sb" with objects?

No, it is used only with people (sb = somebody).

Is "think of sb" separable?

No, you cannot separate "think" and "of" with the object.

Think of sb Meaning & Examples: How to Use “Think of sb” Correctly

Nov 15, 2025

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by

Michael Carter

in English Phrasal Verbs

What Does “Think of sb” Mean?

“Think of sb” means to have someone in your mind or to remember someone. It often involves recalling or considering a person.

Introduction

The phrasal verb “Think of sb” is commonly used in English to express the act of remembering, imagining, or considering a person. When you think of someone, you bring that person to your mind, whether it’s to remember a past event, consider their qualities, or just recall them briefly. Understanding the “Think of sb meaning” helps learners use this phrase naturally in conversations, emails, and writing. It is a simple yet useful expression that appears frequently in both spoken and written English.

Quick Info Box

Phrasal verb: Think of sb (someone)
Type: Transitive
Level: A2–B1
Short meaning: To have someone in your mind or remember someone

Structure (Grammar Rules)

“Think of sb” is an inseparable phrasal verb. You cannot separate “think” and “of” with an object.

Correct: I think of my mother often.
Incorrect: I think my mother of often.

Pattern:

Think + of + someone
Example: She thinks of her friend every day.

How to Use Think of sb?

Use “think of sb” when you want to say that someone comes to your mind. It can be about remembering, imagining, or considering a person. It is often used to express feelings, memories, or opinions about someone.

You can use it in different tenses:

Present: I think of my teacher.
Past: I thought of my friend yesterday.
Future: I will think of you tomorrow.

Examples

Here are some examples to show how “Think of sb” is used in sentences:

I always think of my parents when I feel stressed.
Can you think of anyone who can help us?
When I think of Sarah, I remember her kindness.
He didn’t think of his friends during the crisis.
Think of your teacher in a polite way when you talk about school.

Common Mistakes

People often confuse “think of sb” with “think about sb.” Here are some common errors and the correct forms:

Incorrect: I think my friend of every day.
Correct: I think of my friend every day.
Incorrect: She thinks about her brother always.
Correct: She always thinks of her brother.

Remember, “think of sb” is inseparable, so don’t separate the verb and preposition.

Differences / Synonyms

“Think of sb” is similar to “think about sb,” but there is a slight difference:

Think of sb: Often means to recall or briefly imagine a person.
Think about sb: Implies more careful consideration or deeper thought.

Other synonyms include “remember someone” or “have someone in mind,” but “think of sb” is more casual and common in everyday speech.

Common Collocations

When using “think of sb,” certain words often appear with it. These collocations help you sound natural:

Think of a friend – to remember or imagine a friend
Think of a family member – to have a relative in your mind
Think of a colleague – to recall a workmate
Think of a person’s name – to remember or recall their name
Think of someone’s advice – to consider what someone said

Related Phrasal Verbs

Here are related phrasal verbs of think of sb:

Real-life Dialogue

Here is a short conversation using “Think of sb”:

Anna: I’m feeling a bit lonely today.

Ben: Why don’t you think of your sister? She always cheers you up.

Anna: That’s true. I’ll give her a call now.

Practice

Try to complete the sentences with “think of” + the correct person:

I always _______ my best friend when I need advice.
Can you _______ anyone who can fix my computer?
She didn’t _______ her parents during the trip.

(Answers: think of, think of, think of)

FAQ

Q: Is “think of sb” formal or informal?
A: It is informal and used in everyday conversation.
Q: Can I use “think of sb” in the past tense?
A: Yes, for example, “I thought of her yesterday.”
Q: What’s the difference between “think of” and “think about”?
A: “Think of” is usually brief or spontaneous, while “think about” suggests deeper thought.
Q: Can I use “think of sb” with objects?
A: No, it is used only with people (sb = somebody).
Q: Is “think of sb” separable?
A: No, you cannot separate “think” and “of” with the object.