Usage of will and would

"Will" expresses real future actions, definite intentions, and promises, while "would" is used for unreal or hypothetical situations, polite requests, past habitual actions, and as the past tense of "will" in reported speech. The main difference lies in certainty: "will" for certain events and "would" for imagined or less certain scenarios.

Use of "Will"

Definite future:

"I will go to the store tomorrow."

Promises and offers:

"I will help you with your homework."

Expressing willingness:

"We will be there at 7 PM."

Use of "Would"

Hypothetical situations:

"If I had more money, I would buy a new car."

Polite requests or offers:

"Would you mind closing the door?" or "Would you like some coffee?"

Past habitual actions:

"Every morning, he would read the newspaper by the fire". (Note: For states, use "used to," e.g., "I used to live there" not "I would live there").

Reported speech:

"He said, 'I will come later'" becomes "He said that he would come later".