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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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I guessed so

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "I guessed so" is correct and usable in written English.
It can be used when you want to express that you had a suspicion or belief about something that has been confirmed. Example: "When she said she was moving away, I guessed so, since she had been talking about it for weeks."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

1 human-written examples

Alcohol must be heavier than water, I guessed, so I added a couple capfuls of water to the tank.

News & Media

Vice

Human-verified similar examples from authoritative sources

Similar Expressions

59 human-written examples

Again, I guess so.

News & Media

The New Yorker

Okay, I guess so.

News & Media

Independent

So I guess so, yes.

News & Media

The New Yorker

I guess so [laughs].

I said, "I guess so.

News & Media

The New Yorker

"I guess so," another replied.

News & Media

The New Yorker

HUSBAND: I guess so, Mrs. Anderson.

News & Media

The New Yorker

"You bet!" "I guess so".

News & Media

The New Yorker

"I guess so," Trusdale said.

News & Media

The New Yorker

"I guess so," Fish says.

News & Media

The New Yorker
Show more...

Expert writing Tips

Best practice

Use "I guessed so" to express a confirmation of a prior suspicion or assumption, showing that a recent event or statement aligns with your previous understanding.

Common error

While acceptable, "I guessed so" can sound informal. In professional or academic writing, opt for more precise alternatives like "I anticipated that" or "I suspected as much" to maintain a formal 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

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "I guessed so" functions as a confirmation or agreement, indicating that a previous assumption or suspicion has been validated. As Ludwig AI confirms, it is grammatically sound, aligning with its use in expressing a prior belief.

Expression frequency: Rare

Frequent in

News & Media

100%

Less common in

Science

0%

Formal & Business

0%

Academia

0%

Ludwig's WRAP-UP

In summary, "I guessed so" is a grammatically sound phrase used to confirm prior suspicions or assumptions. As Ludwig AI states, its primary function is to express recognition and validation. The examples show its usage in conversational contexts, primarily within News & Media. While acceptable, it's important to recognize its informal register and consider more formal alternatives like "I anticipated that" or "I suspected as much" in professional or academic settings.

FAQs

How can I use "I guessed so" in a sentence?

You can use "I guessed so" to express confirmation of a prior suspicion or assumption. For example, "When she said she was quitting, "I guessed so", she had been complaining about her job for months."

What are some alternatives to "I guessed so"?

You can use alternatives such as "I assumed as much", "I suspected as much", or "That's what I thought depending on the context".

Is "I guessed so" appropriate for formal writing?

While grammatically correct, "I guessed so" leans towards the informal. Consider using more formal alternatives like "I anticipated that" or "I expected as much" in professional or academic settings.

What's the difference between "I guessed so" and "I thought so"?

Both phrases express agreement or confirmation, but "I guessed so" implies a less certain or more speculative initial assessment compared to the more confident "I thought so".

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Source & Trust

89%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: