1. If I had had a lot of money, I would have bought the car.

1-2. As(=Because) I didn't have a lot of money, I didn't buy the car.

2. If I had had a lot of money, I could have bought the car.
2-2. As I didn't have a lot of money, I couldn't buy the car.

3. If I had had a lot of money, I should have bought the car.
3-2. As I didn't have a lot of money, I regret that I didn't buy the car.
3-3. I didn't have alot of money. So I didn't buy the car. I am sorry for that.

4. If I had had a lot of money, I might have bought the car.
4-2. As I didn't have a lot of money, it was not possible for me to buy the car.
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Would you look at the sentences #1, 2, 3, and 4. Then, could you check their explanations? Are the explanations similar to each sentence?

[corrected]

1. If I had had a lot of money, I would have bought the car.
1-2. As(=Because) I didn't have a lot of money, I didn't buy the car.

2. If I had had a lot of money, I could have bought the car.
2-2. As I didn't have a lot of money, I couldn't buy the car.

3. If I had had a lot of money, I should have bought the car.
3-2. As I didn't have a lot of money, I regret that I didn't buy the car.
3-3. I didn't have a lot of money. So I didn't buy the car. I am sorry for that.

4. If I had had a lot of money, I might have bought the car.
4-2. As I didn't have a lot of money, it was not possible for me to buy the car.
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Would you look at the sentences #1, 2, 3, and 4? Then, could you check their explanations? Are the explanations similar to each sentence?

I wouldn't use #3, but all the rest are fine.

2-2 means the same thing as 4-2.

3 is more of a British-English way to express this thought. In American-English, I'd use "could" instead of "should."

Sure! Let's break down the explanations for each sentence:

1. The explanation for sentence #1 states that because the person didn't have a lot of money, they didn't buy the car. This explanation is aligned with the meaning of the sentence, which expresses a hypothetical situation and its result.

2. The explanation for sentence #2 states that due to not having a lot of money, the person couldn't buy the car. Again, this explanation corresponds with the meaning of the sentence, highlighting a hypothetical condition and its consequence.

3. The explanation for sentence #3 is slightly different. It states that since the person didn't have a lot of money, they regret not buying the car. This explanation focuses more on the feeling of regret and the missed opportunity, rather than solely on the lack of money as the reason for not buying the car.

4. Lastly, the explanation for sentence #4 mentions that as the person didn't have a lot of money, it was not possible for them to buy the car. This explanation emphasizes the limitation imposed by the lack of funds and the resulting impossibility of purchasing the car.

While the general idea of each explanation is similar in the sense that the person couldn't buy the car due to the lack of money, the explanations for sentences #3 and #4 incorporate additional elements such as regret and impossibility respectively. So, there are some variations in the explanations based on the specific meaning conveyed by each sentence.