posted by rfvv .
1. If I had a lot of money, I would buy a new laptop.
2. As I don't have a lot of money, I don't buy a new laptop.
3. If I had had a lot of money, I would have bought a new laptop.
4. As I didn't have a lot of money, I didn't buy a new laptop.
(Does #1 mean #2? Does #3 mean #4? Are there any grammatically wrong expressions?)
1. is supposition - what I would do (Conditional) if...
2. This is fact for what is h appening right now.
3. another supposition = what I would have done (Conditional Perfect) if...
4. this is fact in the past tense = what did not happen
Yes, they are all grammatically correct.