Ellipsis and Substitution
Ellipsis omits words that are clear from context. Substitution replaces words with shorter alternatives. Both make speech and writing more natural and avoid unnecessary repetition.
Ellipsis
Ellipsis is the omission of words that are recoverable from context. It is essential for natural English conversation and writing.
Types of ellipsis
1. Verb phrase ellipsis: omitting a repeated verb phrase
She can play the piano and so can he [play the piano].
I wanted to go, but she didn't [want to go].
He passed the exam and she did too [pass the exam].
2. Ellipsis after auxiliaries:
"Are you coming?" "I might [come]."
"Has she finished?" "I think she has [finished]."
3. Nominal ellipsis: omitting a noun when context is clear
Which shirt do you prefer — the blue one or the red [one]?
Take two tablets in the morning and one [tablet] at night.
4. Clausal ellipsis: omitting an entire clause
"Why did you leave?" "Because I was tired [I left]."
"Did you pass?" "Yes [I did pass]."
Substitution
Substitution replaces a word or phrase with a pro-form rather than deleting it.
| Type | Substitute | Example |
|---|---|---|
| Nominal | one / ones | I need a new pen — I've lost the one you gave me. |
| Verbal | do / do so | She left early. He did too. / He did so reluctantly. |
| Clausal | so / not | "Is she coming?" "I think so / I hope not." |
Tip: 'Do so' is more formal than 'do it' and refers back to a previously mentioned action: 'The committee was asked to review the policy and agreed to do so.'