Here's a brief description:

*Will*:

Future action based on intention, willingness, or prediction
Used for:
Voluntary actions
Promises or offers
Predictions or expectations
Habits or general truths

*Shall*:

Future action based on obligation, necessity, or duty
Used for:
Legal or official requirements
Obligatory actions
Commands or instructions
Formal agreements or contracts

Remember, while both "will" and "shall" can express future actions, "will" implies a sense of intention or willingness, while "shall" implies a sense of obligation or necessity.

The words "will" and "shall" are both used to express future tense, but there are some subtle differences in their usage:

Will:

Used for future actions that are planned or intended
Expresses willingness, desire, or intention
Often used in promises, offers, or predictions

Examples:
I will attend the meeting tomorrow.
She will graduate next year.
They will help us with the project.

Shall:

Used for future actions that are obligatory, mandatory, or legal
Expresses necessity, duty, or obligation
Often used in official documents, laws, or regulations

Examples:
You shall comply with the rules.
The company shall provide a refund within 30 days.
The court shall decide the case.

In general, "will" is used in more informal contexts, while "shall" is used in more formal or official contexts. However, the distinction between the two words can be nuanced, and their usage may vary depending on the context and regional differences.