B2 Upper-intermediate Advanced sentence structure
Basic inversion
Lesson goal. After this lesson you can write inversions after negative adverbs — a pattern common in formal writing and exams.
When to use it
- Emphasis in writing: Never have I seen such a view.
- Opening a formal sentence: Not only was he late, but he also forgot the tickets.
- A frequent transformation task in exams.
Form
| Opening adverb | Structure | Example |
|---|---|---|
| Never · Rarely · Seldom | + auxiliary + S + V | Never have I seen… |
| Little | + auxiliary + S + V | Little did she know… |
| Not only | + auxiliary + S + V, but also… | Not only was he late… |
| Not until + time | + auxiliary + S + V | Not until midnight did he come. |
| No sooner | + had + S + V3 + than | No sooner had I left than… |
Step by step
- Move the negative adverb to the front.
- Find the auxiliary (have, will, was, can…) and put it before the subject.
- If there is no auxiliary, borrow do / does / did for the tense.
- The main verb returns to its base form once do/does/did is borrowed.
Like a question, but not one
| Normal | Inverted | Note |
|---|---|---|
| I have never seen it. | Never have I seen it. | there is already an auxiliary |
| We rarely go out. | Rarely do we go out. | borrow do |
| She didn't know. | Little did she know. | borrow did; the verb goes back to the base form |
| He was late. | Not only was he late… | invert to be |
Examples
Never have I seen such a beautiful place.
Rarely do we go out during the week.
Not only was he late, but he also forgot the tickets.
Little did she know that she was being watched.
Not until midnight did he call me.
No sooner had he left than the phone rang.
Common mistakes
Never I have seen such a view. → Never have I seen such a view.
A fronted negative adverb requires inversion of the auxiliary. This is the commonest error here.
Rarely we go to the theatre. → Rarely do we go to the theatre.
With no auxiliary you must borrow do.
Little she knew the truth. → Little did she know the truth.
Past simple → borrow did, and the main verb becomes know.
Memory tip
An inversion has exactly the word order of a question, minus the question mark. Read it back: if it does not sound like a question, you have not inverted.
Summary
- A fronted negative adverb → put the auxiliary before the subject.
- With no auxiliary, borrow do / does / did; the main verb goes bare.
- Used after Never, Rarely, Seldom, Little, Not only, Not until, No sooner.
Practise this lesson
Do exercises with an explanation for every question, take mini tests and track your progress on GrammUp.