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The best explanation for why the conditional mood is used includes the following points:
1. Sometimes you are making a request or asking something: The conditional mood is often used to politely ask for something or make a request. For example, "Could you please pass me the salt?" uses the conditional mood to make a polite request.
2. In some cases, you need to express a wish or desire: The conditional mood is also used to express wishes, hopes, or desires that may or may not come true. For instance, "I wish I could travel the world" expresses a desire using the conditional mood.
3. There are times when you do not know what will happen: The conditional mood is used to talk about situations that are uncertain or hypothetical. For example, "If I were rich, I would buy a big house" expresses a hypothetical situation using the conditional mood.
By using the conditional mood, you can convey politeness, express wishes, desires, or hopes, and discuss uncertain or hypothetical situations effectively in your communication.
