Backshift = unreality (conditionals + wish, Murphy Units 39-41)
Pattern
Section titled “Pattern”English marks “unreal / hypothetical” by backshifting the tense one step as if it happened in the past.
| Real | If-clause (unreal) | Wish (unreal) |
|---|---|---|
| I live in the city | if I lived in the country | I wish I lived in the country |
| I know the answer | if I knew | I wish I knew |
| I studied | if I had studied | I wish I had studied |
| It will stop raining | if it would stop | I wish it would stop |
The backshift table
Section titled “The backshift table”The tense shifts one step back from reality:
| Real | Backshifted (unreal) | Used in |
|---|---|---|
| present | past simple | 2nd conditional, wish + past |
| past | past perfect | 3rd conditional, wish + past perfect |
| will | would | 2nd conditional result, wish + would |
Conditionals and wish = same mechanism
Section titled “Conditionals and wish = same mechanism”Wish and conditionals both backshift to mark unreality:
| Structure | Example | Meaning |
|---|---|---|
| 2nd conditional | If I lived in the country, I’d need a car. | hypothetical present (I don’t live there) |
| wish + past | I wish I lived in the country. | unreal present (I don’t) |
| 3rd conditional | If I had studied, I’d have passed. | hypothetical past (I didn’t) |
| wish + past perfect | I wish I had studied. | unreal past (I didn’t) |
Why “as if it happened in the past”
Section titled “Why “as if it happened in the past””Cure-Dolly: English’s “past tense” does double duty — it signals past time OR unreality. The if-clause and wish both use the “unreality” reading. The past form is a mood marker, not a time marker.
Indonesian kalau saya tinggal di desa doesn’t change the verb form for hypotheticals — English forces the backshift:
- kalau saya tinggal → “if I live” (real) OR “if I lived” (unreal) — the English verb form disambiguates
- saya berharap saya tinggal → “I wish I lived” — backshift signals it’s not true
Common trap
Section titled “Common trap”Don’t mix the backshift with actual past meaning. If I lived in the country doesn’t mean “in the past I lived there” — it means “hypothetically now”. The past form is mood, not time.
- If I lived in the country = hypothetical NOW (not “I used to live there”)
- If I had lived in the country = hypothetical PAST (not “I lived there before”)
Test application
Section titled “Test application”We live in a city and don’t need a car, but we would need one if ___ in the country.
Answer: we lived. Second conditional (unreal present): if + past simple. We live in the city now (real), so “lived in the country” is the hypothetical opposite.
- we live ✗ — first conditional (real), contradicts “we live in a city”
- we’d live ✗ — “would” can’t appear in the if-clause
Source
Section titled “Source”Raymond Murphy, English Grammar in Use (4th ed.), Units 39-41 — If I knew / I wish I knew. Ebot lesson 2026-08-29: “we would need one if ___ in the country” → we lived. User’s insight: “Is it like as if it happened in the past so it uses past tense?” — exactly: English backshifts tense to mark unreality, same mechanism as wish.