What Does “Check on sb” Mean?
“Check on sb” means to look after someone or make sure they are okay. It often involves a quick visit or call to see if the person needs help or is safe.
Introduction
The phrase “Check on sb” is a common English phrasal verb used when you want to find out if someone is doing well or if they need assistance. The “sb” stands for “somebody,” meaning a person. Understanding the check on sb meaning helps learners use it correctly in everyday situations. For example, you might check on a friend who is sick or check on your neighbor after a storm. This phrase shows care and attention toward others. It is simple but very useful in both spoken and written English.
Quick Info Box
- Phrasal verb: Check on somebody
- Type: Transitive
- Level: A2 (Elementary to Pre-Intermediate)
- Short meaning: To look after or see if someone is okay
Structure (Grammar Rules)
“Check on sb” is a transitive phrasal verb and is inseparable. This means you cannot place the object between “check” and “on.” The correct pattern is:
- Check on + somebody
- Example: I will check on my sister later.
Do not say “Check my sister on” – this is incorrect.
How to Use “Check on sb”?
You can use “check on sb” when you want to express concern or care. It is often used in these situations:
- To see if someone is safe after an event (e.g., accident, storm)
- To find out if someone is feeling better when sick
- To make sure a person is doing their work or task
It is commonly used in both casual and formal contexts.
Examples
- Can you check on grandma while I’m at work?
- I called to check on my friend after her surgery.
- The teacher checked on the students during the exam.
- We should check on the neighbors after the storm last night.
- He often checks on his employees to see if they need help.
Common Mistakes
- Incorrect: I will check my brother on tomorrow.
Correct: I will check on my brother tomorrow. - Incorrect: She checked on him the homework.
Correct: She checked on him. - Incorrect: Check on your work progress.
Correct: Check on your progress.
Differences / Synonyms
Similar phrases include:
- Look after sb: More about caring or taking responsibility over time.
- Check up on sb: Often means to investigate or verify, sometimes with suspicion.
- Follow up on sb: To review or continue communication, often professional.
“Check on sb” focuses on making sure someone is okay, usually in a caring way.
Common Collocations
- Check on a friend
- Check on a family member
- Check on a patient
- Check on a neighbor
- Check on employees
Related Phrasal Verbs
Here are related phrasal verbs of check on sb:
Real-life Dialogue
Anna: Hey, did you check on Mike after his surgery?
John: Yes, I called him yesterday. He’s feeling much better.
Anna: That’s good to hear. I’ll check on him again this weekend.
Practice
Fill in the blank:
Can you _______ on your grandmother while I’m away?
- a) check for
- b) check on
- c) check at
- d) check with
FAQs
- Q: Is “check on sb” formal or informal?
A: It is used in both formal and informal situations. - Q: Can I say “check sb” instead of “check on sb”?
A: No, “check sb” alone is not common; “check on sb” is the correct phrase. - Q: What does “sb” mean?
A: “sb” is short for “somebody” or “someone.” - Q: Can “check on” be used for things?
A: It is mostly used for people, but sometimes for animals or situations. - Q: Is “check on sb” separable?
A: No, it is inseparable; the object must come after “check on.”

