Ellipsis & Substitution (C1/C2)
📌 Lesson Contents
🎯 Lesson goal (C1/C2)
Ellipsis (leaving words out) and Substitution (replacing words) are advanced tools for making a text hang together. They let you avoid repeated or unnecessary words, either by replacing them with short items (like *so, not, one, do so*) or by deleting them completely when the context makes them obvious. 🚀
🌟 Ellipsis (leaving out obvious words)
This means leaving out words that have already been mentioned or are perfectly clear from the context (often after conjunctions like *and, but, or* or in comparisons).
| Full sentence (repetitive) | Sentence with Ellipsis (natural) |
|---|---|
| John wanted to join the team, but he couldn’t join the team. | John wanted to join the team, but he couldn’t ø. |
| She bought a red dress and her sister bought a blue dress. | She bought a red dress and her sister ø a blue one. |
⏱️ Substitution with “So” and “Not”
We use so and not to replace a whole clause after verbs of opinion, perception or hope (e.g. *think, hope, expect, suppose, believe, guess, be afraid*).
- “Will it rain tomorrow?” “I hope so.” (= I hope it will rain)
- “Is he resigning?” “I’m afraid not.” (= I’m afraid he is not resigning)
- “Do you think they will win?” “I expect so.” (= I expect they will win)
🔗 Substitution with “Do so” and “One / Ones”
To avoid repeating a whole verb phrase or a noun that has already been mentioned, we use special substitutes:
- Do so / Do it / Do that: they replace a verb phrase (e.g. She promised to sign the contract, and she did so immediately.).
- One / Ones: they replace a countable noun to avoid repeating it (e.g. I don’t like this laptop; I prefer the other one.).
🔍 Infinitival Substitution (To)
After verbs that take the infinitive (e.g. *want, would like, intend, try, refuse, be allowed*), we can keep just the particle **”to”** and leave out the rest of the verb if it is already known.
- “Would you like to come with us?” “I’d love to.” (= I’d love to come)
- He wanted to leave early, but he wasn’t allowed to. (= wasn’t allowed to leave early)
🛠️ How to form them
To use ellipsis and substitution correctly in formal and everyday contexts, follow these structural rules:
| Category | Formation rule | Key example |
|---|---|---|
| Short answers with So/Not | Opinion verb + so (affirmative) or not (negative). | “Are you ready?” “I think so.” |
| Replacing nouns | Replace a singular noun with one (and a plural noun with ones). | I need a pen. Do you have a spare one? |
| Replacing verbs | Use do so to refer back to a complex action you have just described. | They agreed to cooperate and did so. |
| Elliptical infinitive | Keep the particle to after modal or cut-short infinitive verbs. | She wanted to resign, but decided not to. |
🚫 Common mistakes to avoid
| C1/C2 Mistake ❌ | Correct ✅ |
|---|---|
| “Will it snow?” “I hope yes.” | “Will it snow?” “I hope so.” (Use ‘so’, not ‘yes’, after hope/think!) |
| I lost my phone and I need to buy a new. | I lost my phone and I need to buy a new one. (A singular countable noun is replaced by ‘one’) |
| He wanted to enter, but was not allowed. (no ‘to’) | He wanted to enter, but was not allowed to. (A cut-short infinitive still needs the particle ‘to’) |
1. Gap Fill & Translation (C1/C2)
Complete the sentences with the correct substitution or ellipsis item (e.g. so, not, one, to, do so).
2. Extra: Sentence Builder 🧩
Tap the words to move them and build perfect sentences with ellipsis and substitution!