hello.i didn’t realize grammar of paragraph 2.had they known…could you explain for me please?
Had I known (that) + unknown fact + (then) different action
- Had I known that housing prices would drop, I wouldn’t have bought a home last year.
- Had I known it would be so busy, I would have come earlier.
- Had I known that it was her birthday, I would have bought her a present.
- Had I known that it would be on sale this week, I would have waited to buy it.
- Had I known you were a vegetarian, I wouldn’t have made chicken for dinner.
- Had I known that he wasn’t coming, I wouldn’t have made so much food.
- Had I known our class was canceled today, I would have stayed in bed.
We can also switch the order of the sentence.
Different action + had I known (that) + unknown fact
- I would have invited you to the concert had I known you were a fan of the band.
- I could’ve helped him had I known that he needed help.
- We would never have bought this house had we known that we would have 5 children.