So do I / Neither do I
Learn how to agree with positive and negative statements like a native speaker.
- check_circleI can agree with positive statements using 'So + aux + subject'.
- check_circleI can agree with negative statements using 'Neither + aux + subject'.
Discover
Meet today's English in a real situation — no rules yet. Read it once and try to guess the pattern in the words in bold. Underlined words open a short definition.
Tom: I’m so excited about the weekend! I love going to the beach. Sarah: So do I! The weather is supposed to be perfect. Tom: I can’t wait to just relax and swim. I really don’t like staying in the city during summer. Sarah: Neither do I. It gets too hot and crowded. Are you bringing any food? Tom: Yes, I’m making sandwiches. I’m not a big fan of eating at the restaurants there. Sarah: Neither am I. They are too expensive. I can bring some drinks, though. Tom: That would be great. I hope we can find a good spot on the sand. Sarah: So do I. Let’s leave early so we don’t have to struggle to find a place. Tom: Good idea. I hate waking up early, but it will be worth it. Sarah: So do I, but you’re right. I’m going to pack my sunscreen tonight. Tom: So am I. See you tomorrow! Sarah: See you! I’m really looking forward to it. Tom: So am I! It’s going to be a blast.
Learn
Now the rules behind what you just saw — explained simply, with examples. Underlined words open a short definition — hover on desktop, tap on a phone.
When we want to agree with someone, we often use So (for positive statements) and Neither (for negative statements), followed by an auxiliary verb and the subject.
Agreeing with Positive Statements: “So do I”
If someone says a positive statement and you want to say “Me too”, you can use: So + Auxiliary Verb + Subject
The auxiliary verb changes depending on the tense of the original sentence.
A: I love pizza! (Present Simple)
B: So do I!
A: I am tired. (Verb ‘to be’)
B: So am I.
A: I can swim well. (Modal ‘can’)
B: So can I.
Agreeing with Negative Statements: “Neither do I”
If someone says a negative statement and you want to say “Me neither”, use: Neither + Auxiliary Verb + Subject
A: I don’t like horror movies. (Present Simple)
B: Neither do I.
A: I’m not hungry. (Verb ‘to be’)
B: Neither am I.
If you are not sure which auxiliary verb to use, listen to the first speaker’s sentence. If they say “I don’t…”, use “do”. If they say “I can’t…”, use “can”.
Vocabulary in Context
Sometimes people like to boast about their achievements, and we might simply agree with them to be polite. However, if they are complaining about something, it’s common to sympathize by saying “Neither do I” when they share a dislike.
Common Mistakes
Don’t say: “So I do” or “Neither I do”.
The auxiliary verb must come before the subject.
Say: “So do I” and “Neither do I”.
Don’t use ‘So’ for negative statements.
A: I don’t like fish.
B: So don’t I. ❌
B: Neither do I. ✅
- Positive agreement: So + Auxiliary + Subject (So do I, So am I, So can I)
- Negative agreement: Neither + Auxiliary + Subject (Neither do I, Neither am I, Neither can I)
- Match the tense: Use the same auxiliary verb as the first speaker’s sentence.
Practice
Try it yourself. You'll see right away whether you got it right, plus a short explanation of why.
Use It
Now make the language yours in a real task. Use the prompt below — the editor keeps a simple word count, and nothing is saved or graded.
Before you finish — be honest. Can you do these now?