The Structure
If + Past Simple, ... would + Verb
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The "If" Clause (Condition): Uses the Past Simple tense. It describes a hypothetical (unreal) situation now or in the future.
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The Main Clause (Result): Uses would (or could, might) + the base verb. It describes the imaginary result.
If I won the lottery, I would travel the world.
(I probably won't win the lottery, it's just a dream.)
If I were you, I would study harder.
Grammar Tip: "Was" vs "Were"
In the Second Conditional, we often use "were" for all subjects (I, he, she, it) instead of "was". This is called the subjunctive mood.
"If I were a bird..." is more formal/correct than "If I was a bird..."
Negatives
Use didn't in the if-clause and wouldn't in the main clause.
If + Past Simple (Negative), ... wouldn't + Verb
- If I didn't have work, I would go with you.
- If she knew the truth, she wouldn't be angry.
Questions
Change the order in the Main Clause to make a question.
(Wh-) + Would + Subject + Verb ... if ... ?
- Would you buy a house if you were rich?
- What would you do if you saw a ghost?
Position of "If" & Punctuation
Just like the First Conditional, you can start with either clause. The meaning is the same.
"If" at the beginning
Use a comma after the if-clause.
If I lived in Spain, I would learn Spanish.
"If" in the middle
Do NOT use a comma.
I would learn Spanish if I lived in Spain.
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