Explanation
Exercises

✅ Agreement responses: so, neither, too, either

Say you are the same as someone: So + auxiliary + subject (affirmative) · Neither + auxiliary + subject (negative). End-position options: too (affirmative) and either (negative).
So + AUX + subject → “Me too” (formal) Neither + AUX + subject → “Me neither” (formal) Use the same auxiliary/modal Do/does/did if there’s no auxiliary Nor = Neither (formal) No double negatives after neither
🟢Affirmative agreement
SO … So + auxiliary/modal + subject
  • “I’m tired.” → So am I.
  • “Lisa can drive.” → So can Tom.
  • “We’ve finished.” → So have they.
  • “I like jazz.” → So do I.
  • “I went early.” → So did we.
TOO (end) Put too at the end: “I like jazz.” — “I like jazz too.”
🔴Negative agreement
NEITHER … Neither + auxiliary/modal + subject (no double negative!)
  • “I’m not tired.” → Neither am I.
  • “Ben hasn’t called.” → Neither has Sally.
  • “We can’t swim.” → Neither can they.
  • “I don’t like tea.” → Neither do I.
  • “She didn’t go.” → Neither did we.
EITHER (end) End-position for negatives: “I don’t like tea.” — “I don’t either.”
🔧Which auxiliary do I use?

Be / Modals

  • be: “He is late.” → So is Jake.
  • can/will/should/must: “We will help.” → So will I.

Perfect / Continuous

  • have (perfect): “She has arrived.” → So has Mike.
  • be + -ing: “I am working.” → So am I.

No auxiliary? Use do/does/did

  • Present simple: “They like it.” → So do we.
  • Past simple: “She went home.” → So did I.

Nor (formal)

  • “I wasn’t ready.” → Nor was I. (= Neither was I.)
⚠️Common mistakes
  • Word order: ❌ So I am → ✅ So am I.
  • Double negative: ❌ Neither didn’t I → ✅ Neither did I.
  • Wrong end-word: ❌ I don’t like it too → ✅ I don’t like it either.
  • Wrong auxiliary: match the first clause’s auxiliary/modal/tense.
Informal shortcuts
  • Me too / Me neither (very informal).
🧪More natural examples
  • “We’re ready.” — So are we. / “We’re ready too.”
  • “I haven’t finished.” — Neither have I. / “I haven’t either.”
  • “Tom studies at night.” — So does Nora.
  • “They won’t agree.” — Neither will the board.
Recap: Copy the helper: So/Neither + AUX + subject. Use too/either at the end. Keep the same auxiliary or use do/does/did when there isn’t one. Avoid double negatives after neither.
Exercises:
1
2
3

So, neither: So am I, neither do I, etc.

Choose the correct forms with so, neither, too, either to complete the sentences below.
1
A: “I haven’t written the essay yet.” B: “Neither I.”
2
A: “I’m very thirsty.” B: “So I.”
3
A: “Sam won’t help us.” B: “Neither I.”
4
A: “I can’t forgive them.” B: “I either.”
5
A: “I drink too much coffee.” B: “I too.”
6
A: “Mum was very proud of us.” B: “So Dad.”
7
A: “Ann has finished the report.” B: “So I.”
8
A: “I don’t like crowded places.” B: “I either.”
9
A: “We went hiking last weekend.” B: “So we.”
10
A: “They’re working late tonight.” B: “So we.”

So, neither: So am I, neither do I, etc.

Choose the correct forms with so, neither, too, either to complete the sentences below.
1
A: “I don’t like spicy food.” B: “____.”
A.
B.
C.
2
A: “I’m not going out tonight.” B: “____.” Choose TWO correct answers
A.
B.
C.
D.
E.
3
A: “We’re excited about the trip.” B: “____.”
A.
B.
C.
4
A: “I’ve finished my homework.” B: “____.”
A.
B.
C.
5
A: “She doesn’t eat meat.” B: “____.”
A.
B.
C.
6
A: “I can swim two kilometers.” B: “____.”
A.
B.
C.
7
A: “We didn’t see the comet.” B: “____.” Choose TWO correct answers
A.
B.
C.
D.
E.
8
A: “I’m freezing!” B: “____.”
A.
B.
C.
9
A: “Tom has never been to Japan.” B: “____.”
A.
B.
C.
10
A: “I’ll call you tonight.” B: “____.”
A.
B.
C.

So, neither: So am I, neither do I, etc.

Complete the sentences using so, neither and the words in brackets with the correct auxiliary.
How it works: Positive: So + auxiliary + subject Negative: Neither + auxiliary + subject Be, modals, have (Perf.) keep their auxiliary Ordinary verbs → do/does/did Match the subject in ( )
1
“My sister is tired.” ⇒ “.” (Mark)
2
“I don’t like spicy food.” ⇒ “.” (Olivia)
3
“We went to Paris last year.” ⇒ “.” (they)
4
“I’m not ready for the meeting.” ⇒ “.” (Lucas)
5
“Sophie has finished her homework.” ⇒ “.” (Ben)
6
“They can’t swim.” ⇒ “.” (I)
7
“We’ll call you tomorrow.” ⇒ “.” (Nora)
8
“Peter didn’t enjoy the party.” ⇒ “.” (we)
9
“The hotel was expensive.” ⇒ “.” (the restaurant)
10
“You should see a doctor.” ⇒ “.” (Ethan)