So do I

USAGE SUMMARY

The phrase "So do I" is correct and usable in written English.
It is typically used to express agreement with a positive statement made by someone else. Example: "I love going to the beach." "So do I."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

So do I, sir. So do I.

The Guardian - Film

So, do I buy this?

The New York Times

"So do I," I parried.

The New York Times

"So do I," Berkman said.

The New York Times - Sports

So do I, I guess.

The New Yorker

So do I, Gary.

The Guardian - Sport

"So do I, Hameed.

The Guardian

"So do I!" wrote Dr Max Pemberton.

Independent

So do I regret anything I did?

The New Yorker

"So do I," the other said.

The New Yorker

Human-verified similar examples from authoritative sources

Similar Expressions

1 human-written examples

So did I, probably.

The New Yorker

Expert writing Tips

Best practice

Use "So do I" to succinctly express agreement with a positive statement, maintaining a natural and conversational tone.

Common error

Avoid using "So do I" after a negative statement; instead, use "Neither do I" or "Nor do I" to express agreement with a negative statement. For example, if someone says "I don't like coffee", respond with "Neither do I", not "So do I."

Linguistic Context

"So do I" functions as an elliptical clause expressing agreement. It's a concise way to indicate that the speaker shares the same sentiment, experience, or preference as the previous speaker. This is well supported by Ludwig, which presents numerous examples of the phrase in use.

Expression frequency: Very common

Frequent in

News & Media

95%

Science

2%

Wiki

1%

Less common in

Formal & Business

1%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "So do I" is a common and grammatically correct phrase used to express agreement with a positive statement. As Ludwig confirms, it's prevalent in various contexts, particularly in news and media, serving to build rapport and show shared understanding. While alternatives like "Me too" exist, "So do I" provides a slightly more formal and complete expression of agreement. Remember to avoid using it after negative statements and opt for "Neither do I" instead.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

Me too

A shorter, more informal way to express agreement.

I do too

A slightly more emphatic version of the original phrase, placing stress on the action.

Same here

An informal expression indicating a shared experience or feeling.

Likewise

A more formal and concise way to express a similar feeling or action.

I feel the same way

Expresses agreement in terms of feelings or opinions.

I concur

A formal and direct way of stating agreement.

That's how I feel too

Highlights that the speaker shares the same sentiment.

I agree

A general term to show consensus with a statement.

I have the same opinion

Indicates agreement specifically about an opinion.

You're not alone in thinking that

Offers agreement while also providing reassurance that the other person's view is shared by someone else.

FAQs

How do you use "So do I" in a sentence?

"So do I" is used to express agreement with a previous positive statement. For example, if someone says, "I enjoy reading books", you can respond with, "So do I".

What's the difference between "So do I" and "Me too"?

While both express agreement, "So do I" is grammatically complete and often preferred in more formal contexts. "Me too" is shorter and more informal, commonly used in casual conversation.

Which is correct, "So do I" or "So I do"?

"So do I" is the correct form for expressing agreement. "So I do" has a different meaning and is used for emphasis or contradiction, not to show agreement.

What can I say instead of "So do I"?

You can use alternatives like "me too", "same here", or "likewise" depending on the context and level of formality.