so did I

USAGE SUMMARY

The phrase "so did I" is correct and usable in written English.
It is typically used to express agreement with a past action or sentiment that someone else has mentioned. Example: "I enjoyed the concert last night." "So did I."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

53 human-written examples

So did I, probably.

The New Yorker

So did I.

The New York Times - Sports

(And so did I).

The New York Times

"So did I," she said.

The New Yorker

"So did I," Nina said.

The New Yorker

So did I, at first.

The New York Times - Sports

Human-verified similar examples from authoritative sources

Similar Expressions

5 human-written examples

First chance I got, so did I. Milepost 294.

Los Angeles Times

Oddly enough, so did I. © Denis Quilley.

The Guardian

A So did I. Q Tell me about that transition.

The New York Times

Charlie Rose: So did I. Marc Andreessen: There we go.

TechCrunch

3SG__buy-PRF__one__CL__fork__1SG__alsobuy-PRF__one__CL He bought a fork, and so did I.   b.

Lingua Sinica

Expert writing Tips

Best practice

Use "so did I" to succinctly express agreement with a previous statement about a past action or state. It's more concise than repeating the entire verb phrase.

Common error

Avoid using "so I did" instead of "so did I" in response to a statement about a past action. The correct structure requires the auxiliary verb "did" to come before the subject "I".

Linguistic Context

The primary grammatical function of "so did I" is as a conjunction phrase used to express agreement with a previous statement. This is supported by Ludwig AI's analysis, which confirms its correct usage.

Expression frequency: Very common

Frequent in

News & Media

100%

Less common in

Formal & Business

0%

Science

0%

Wiki

0%

Ludwig's WRAP-UP

The phrase "so did I" functions as a concise way to express agreement or shared experience. Ludwig AI confirms that it is grammatically sound and widely used, especially in news and media contexts. It's important to maintain the correct structure to avoid grammatical errors, and while alternatives like "I did too" exist, "so did I" offers a slightly more emphatic tone. Its neutral register makes it appropriate for diverse communication settings. In summary, mastering "so did I" enhances both the clarity and impact of your writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

I did too

Uses "too" instead of "so" to indicate agreement.

Me too

A shorter, more informal way to express agreement.

I also did

Uses "also" to convey that the speaker performed the same action.

Likewise, I did

More formal, indicating a similar action or feeling.

The same goes for me

Indicates that the situation or experience is similar for the speaker.

I felt the same way

Specifically refers to sharing the same feeling or sentiment.

That happened to me too

Indicates that the same event or occurrence happened to the speaker.

I experienced that as well

A slightly more formal way of saying the speaker had a similar experience.

It was the same for me

Highlights the similarity of the situation for the speaker.

I had the same experience

Directly states that the speaker had a similar experience.

FAQs

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

Use "so did I" to express agreement with a previous statement, such as "I enjoyed the movie" followed by "So did I".

What are some alternatives to "so did I"?

You can use alternatives like "I did too", "me too", or "I also did" depending on the context.

Is it correct to say "so I did" instead of "so did I"?

No, "so I did" is not grammatically correct when you intend to express agreement with a previous statement. The correct form is "so did I", which uses inversion to show agreement.

What's the difference between "so did I" and "I did too"?

Both "so did I" and "I did too" express agreement, but "so did I" uses inversion for emphasis and can sound slightly more formal or emphatic than "I did too".