Use of Might:

"Might" is a modal verb in English that has several uses, primarily indicating possibility, permission, or past tense of "may." Let's break down its different uses with examples:

1. **Possibility**:
   - **Present/Future Possibility**: "Might" can indicate a possibility in the present or future, suggesting something is possible but not certain.
     - Example: "It might rain later, so you should bring an umbrella."
   - **Past Possibility**: It can also express a possibility in the past, indicating that something was possible but didn't happen.
     - Example: "She might have missed the train."

2. **Permission or Polite Request**:
   - In a polite request or seeking permission, "might" is softer than "may."
     - Example: "Might I borrow your pen for a moment?"
   - It can also be used to suggest something politely.
     - Example: "You might want to consider a different approach."

3. **Past Tense of "May"**:
   - In reported speech or indirect speech, "might" is often used as the past tense of "may."
     - Example: Direct speech: "He said, 'I may go to the party.'" Indirect speech: "He said he might go to the party."

4. **Conditional Statements**:
   - "Might" can be used in conditional statements to express a hypothetical situation.
     - Example: "If I had studied harder, I might have passed the exam."

5. **Expressions of Doubt or Uncertainty**:
   - "Might" can convey doubt or uncertainty about a statement.
     - Example: "I might be wrong, but I think the meeting is at 2 p.m."

6. **Expressions of Willingness or Intent**:
   - In some contexts, "might" can express willingness or intention, though this usage is less common.
     - Example: "I might help you with your project if I have some free time."

7. **Expressions of Hypothetical Situations**:
   - "Might" can also be used to discuss hypothetical or imaginary situations.
     - Example: "If I were a millionaire, I might travel the world."
 

In summary, "might" is a versatile modal verb used to express possibility, permission, past tense of "may," polite requests, doubt, conditional statements, willingness, and hypothetical situations. Its usage depends on context and the meaning you intend to convey.