Used and loved by millions

Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

I assume so

Grammar usage guide and real-world examples

USAGE SUMMARY

'I assume so' is correct and usable in written English.
You can use 'I assume so' when you don't know for sure, but believe something to be true. Example: "Do you think the rain will stop before the picnic starts?" "I assume so."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

11 human-written examples

I assume so," she said.

News & Media

Independent

I assume so, yes.

News & Media

The Guardian

"I assume so," he replies.

News & Media

The Guardian

I assume so, but who knows?

Asked if she would sell the picture rights, Clifford said: "I assume so.

News & Media

The Guardian

(I assume so, anyway; I say this from a flat in Kent, where there is only cold, cold freeze).

Show more...

Human-verified similar examples from authoritative sources

Similar Expressions

49 human-written examples

The new GM has to recognize this, I would assume, so I'm pretty sure he'll make the connection that there is nothing to be gained from 'resurrecting' Sanchez's career.

News & Media

The New York Times

I haven't ever really asked, but I'd assume so.

News & Media

Vice

I would assume so.

But I would assume so, yes.

News & Media

The New Yorker

"I would assume so," he said.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

Use "I assume so" when you want to express a belief or expectation without absolute certainty, especially in response to a question or statement.

Common error

While acceptable, "I assume so" can sound less professional in formal contexts. Consider using alternatives like "I believe so" or "I presume so" for a more refined tone.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

89%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "I assume so" functions as a declarative statement expressing a belief or expectation. As confirmed by Ludwig AI, it is grammatically correct and usable. It indicates a degree of uncertainty or acceptance of a proposition.

Expression frequency: Common

Frequent in

News & Media

79%

Science

10%

Formal & Business

11%

Less common in

Encyclopedias

0%

Wiki

0%

Social Media

0%

Ludwig's WRAP-UP

"I assume so" is a commonly used phrase to express a belief or expectation without complete certainty. Ludwig AI confirms its grammatical correctness and usability across various contexts. While generally neutral in formality, consider alternatives like "I believe so" or "I presume so" for more formal settings. The phrase appears frequently in news and media, reflecting its utility in conveying assumptions in reporting and discussions. Remember to use "I assume so" when you want to express an informed guess or agreement, acknowledging that you don't have definitive proof.

FAQs

When is it appropriate to use "I assume so"?

It's appropriate to use "I assume so" when you believe something is true but lack definitive proof. It's a polite way to express a belief or expectation, often in response to a question.

What are some alternatives to "I assume so"?

You can use alternatives like "I believe so", "I suppose so", or "I guess so", depending on the context and the level of certainty you want to convey.

Is "I assume so" formal or informal?

"I assume so" is generally considered neutral in formality. While acceptable in most situations, more formal alternatives like "I presume so" or "I expect so" might be preferable in professional or academic settings.

How does the meaning of "I assume so" differ from "I know so"?

"I assume so" indicates a belief or expectation without complete certainty, while "I know so" expresses a firm conviction based on knowledge or evidence. The former implies a degree of uncertainty, whereas the latter signifies certainty.

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

Editing plus AI, all in one place.

Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.

Source & Trust

89%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Most frequent sentences: