She likes coffee and so do I.
- Language
- English
- Level
- B2
- Unit
- Discourse and Cohesion
- Practice types
- 0
What this grammar point covers
Ellipsis and substitution are ways to avoid repeating words or phrases in English. Ellipsis means leaving out words that are understood from the context. Substitution means using a short word (like 'do', 'so', or 'one') to replace a longer phrase.
When to use it
Use ellipsis and substitution to make sentences shorter and more natural, especially when the meaning is clear from context, in conversations, or when answering questions.
Key forms
- Use 'do', 'so', 'one', 'ones', 'that', 'those' to replace words or phrases.
- Omit repeated words after 'and', 'but', or in answers.
- Use auxiliary verbs (is, have, can, etc.) to stand in for verbs.
Examples
I ordered the chicken, but John didn’t.
I like this hat. Do you want one?
He’s going to the party, and I am too.
I haven’t finished yet, but she has.
Tips
- Don’t repeat the same words if it’s already clear what you mean.
- Be careful to use the correct auxiliary verb for substitution.
- Remember: ellipsis is more common in speaking and informal writing.
Exceptions and edge cases
- Sometimes, ellipsis can make sentences confusing if the context isn’t clear.
- Not all words can be substituted; choose the right substitute word for the phrase.