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How to Say “I’m Not Sure” Professionally

Nobody knows everything at work.

The problem is not saying:

“I’m not sure.”

The problem is saying it in a way that sounds like you are giving up.

Good workplace English lets you be honest without sounding helpless.

You can admit that you do not know something and still show that you are willing to find the answer.

Here are useful ways to do that.

1. “I’m not sure yet.”

This is simple and honest.

The word “yet” helps because it leaves the conversation open.

You:
“I’m not sure yet. Let me check.”

That sounds much stronger than simply:

“I don’t know.”

2. “Let me check and get back to you.”

Use this when you need to find the correct information.

Coworker:
“Do you know when the delivery arrives?”

You:
“Let me check and get back to you.”

Now you have not guessed.

You have also shown that you will take responsibility for finding the answer.

3. “That’s a good question.”

This is useful when you need a moment to think.

“That’s a good question. Let me check.”

It buys you a little time without making the conversation awkward.

4. “I’ll find out and let you know.”

Clear and professional.

You:
“I’m not sure, but I’ll find out and let you know.”

This is especially useful when someone else may have the answer.

5. “I’m not sure, but here’s what I do know…”

Sometimes you do not have the complete answer.

You can still be useful.

For example:

“I’m not sure what time they’re arriving, but I know they’re coming this afternoon.”

That keeps the conversation moving.

Workplace English phrases for saying I’m not sure professionally.

6. “I need to check on that.”

Use this when accuracy matters.

“I need to check on that before I give you an answer.”

This sounds careful, not weak.

7. “I’m not sure, but I think…”

Use this only when it is safe to give a best estimate.

“I’m not sure, but I think the meeting starts at three.”

If the information is important, follow it with:

“Let me confirm that.”

8. “I don’t have that information right now.”

This is useful when someone asks for information you simply do not have.

“I don’t have that information right now, but I can find it.”

Again, the important part is what comes next.

9. “Can you give me a few minutes to check?”

Useful when you need time.

“Can you give me a few minutes to check?”

This makes the next step clear.

10. “I’ll confirm and get back to you.”

A strong way to finish the conversation.

“I’ll confirm and get back to you.”

Short. Professional. Reliable.

THE BIG IDEA

You do not need to pretend you know everything.

Professional communication is often:

“I don’t know yet, but I know what I’m going to do next.”

That is very different from simply saying:

“I don’t know.”

WHEN NOT TO GUESS

At work, guessing can cause problems.

Especially with:

– safety instructions
– money
– deadlines
– measurements
– schedules
– customer information
– equipment
– legal or company rules

When accuracy matters, check.

USE THE FOUR FINGER RULE

WANT TO
What do you want to communicate?
“I want them to know I’m being honest.”

HAVE TO
What information must be correct?
The fact, time, number, instruction, or decision.

NEED TO
What might you need?
Time to check.
Another person’s answer.
A document or schedule.

MIGHT
What might happen?
Someone asks a question you cannot answer immediately.

Prepare a phrase such as:

“Let me check and get back to you.”

FINAL TIP

“I’m not sure” is not unprofessional.

Giving a confident wrong answer can be.

Be honest.
Show initiative.
Find the answer.
Keep the conversation moving.

Stop memorizing English. Start using it.
Learn it. Prepare for it. Go use it.

Explore the Four Finger Rule — the complete 52-week program for US$52 one time.

The Four Finger Rule. Real life. Real conversations. Explore the Four Finger Rule.