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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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then do i

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "then do I" is correct and usable in written English.
It can be used in contexts where you are affirming or agreeing with a previous statement, often in a poetic or rhetorical manner. Example: "If you believe in hard work, then do I."

✓ Grammatically correct

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

57 human-written examples

How, then, do I continue to write?

Why, then, do I feel so helpless?

That drives us baby boomers or then, do I mean?

News & Media

The New Yorker

And then do I want to use that?

What then do I have to complain about?

News & Media

The New York Times

"Then do I have your permission to keep reading it?" "No, you absolutely don't.

News & Media

The New Yorker

Then, and only then, do I know what I think, feel, believe.

What then do I see as the appropriate standard for limiting that power?

Show more...

Human-verified similar examples from authoritative sources

Similar Expressions

3 human-written examples

Only then did I become concerned.

News & Media

Independent

Only then did I scan the refrigerator.

Only then did I connect the dots.

Expert writing Tips

Best practice

Consider the rhythm and flow of your sentence. "Then do I" works best when it naturally complements the surrounding words, creating a smooth and impactful statement.

Common error

Avoid using "then do I" too frequently, as it can make your writing sound repetitive or overly formal. Use it sparingly to maximize its impact.

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 "then do I" functions as an emphatic affirmative or agreement, often following a conditional clause. Ludwig AI indicates its correct usage, aligning with examples where it reinforces a previous statement or condition.

Expression frequency: Common

Frequent in

News & Media

60%

Academia

20%

Formal & Business

10%

Less common in

Science

5%

Wiki

3%

Reference

2%

Ludwig's WRAP-UP

In summary, the phrase "then do I" is grammatically correct and functions as a formal way to express agreement, continuation, or logical consequence. Ludwig AI confirms its validity, with many examples pulled from news and academic sources. While acceptable, it is important to be aware of the slightly formal register and use it sparingly. Alternatives like "so do I" or "I also do" may be more appropriate in casual contexts. It's a useful phrase for adding emphasis and elegance to your writing when used judiciously.

FAQs

How can I use "then do I" in a sentence?

You can use "then do I" to express agreement or continuation following a condition or statement. For example, "If you are going to the store, "then do I" want to come along."

What are some alternatives to "then do I"?

Alternatives include "so do I", "I do too", or "I also do", depending on the context.

Is "then do I" formal or informal?

"Then do I" leans towards a more formal register. In most cases the alternatives are less formal and more frequently used.

When is it appropriate to use "then do I"?

It's appropriate to use "then do I" when you want to add emphasis or a slightly formal tone to your agreement or continuation of a statement. Avoid it in very casual conversation.

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Source & Trust

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Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: