Learn So / Neither + Auxiliary in English
Agree with positive and negative statements: So do I. Neither can she.
- Learning goal
- Recognize and use this pattern in context.
- Practice
- 10 randomized questions with explanations.
- Suggested workflow
- Study the examples, then take the quiz.
Grammar Focus
When someone makes a statement and you want to agree with it, English uses two special structures: So (for positive agreement) and Neither (for negative agreement). These structures allow you to say "me too" or "me neither" in a grammatically precise way by mirroring the auxiliary verb from the original statement.
- Use So + auxiliary + subject to agree with a positive statement: "I love jazz." → "So do I."
- Use Neither + auxiliary + subject to agree with a negative statement: "I can't swim." → "Neither can I."
- The auxiliary verb you use must match the tense and type used in the original statement: be verbs, modal verbs, do/does/did, have/has.
- The subject and auxiliary are inverted — unlike normal sentences, the auxiliary comes before the subject.
- In informal speech, Me too (positive) and Me neither (negative) are common alternatives, though they are not grammatically complete sentences.
- These structures are especially useful in conversation to show empathy, agreement, and shared experience.
Form & Structure
Agreeing with Positives: So
Agreeing with Negatives: Neither
Informal Alternatives
Common Mistakes
Using the wrong auxiliary verb
Tip: You must use the auxiliary verb that matches the original tense. For simple present with action verbs, use do/does — not the main verb itself.
Using 'Neither' with positive statements
Tip: Neither is only for agreeing with negative statements. If the original statement is positive, always use So, not Neither.
Keeping normal word order instead of inverting
Tip: After So and Neither, you must invert the subject and auxiliary: auxiliary first, then subject. Think of it like a question structure.