Explain the usage of the conditional simple tense.

The conditional simple tense, also known as the conditional mood, is used to express hypothetical or unreal situations in the present or future. It is often used to talk about things that could happen or would happen under certain conditions.

The conditional simple tense is formed by using the auxiliary verb "would" followed by the base form of the main verb. For example, "I would go" or "She would eat."

Here are some common uses of the conditional simple tense:

1. Expressing hypothetical situations: The conditional simple tense is used to talk about things that are not likely to happen or are purely hypothetical. For example, "If I won the lottery, I would travel the world."

2. Making polite requests or offers: The conditional simple tense can be used to make polite requests or offers. For example, "Would you mind closing the window?" or "Would you like some coffee?"

3. Expressing unreal past events: The conditional simple tense can be used to talk about unreal or hypothetical events in the past. For example, "If I had studied harder, I would have passed the exam."

4. Speculating about the present or future: The conditional simple tense can be used to speculate or make guesses about the present or future. For example, "She would probably be late" or "They would likely win the game."

It is important to note that the conditional simple tense is not used to talk about future events that are certain or likely to happen. In such cases, other future tenses like the future simple or present continuous are used.