'Will' is a modal verb that talks about the future. As a modal, it is also used to prediction, request something, talk about willingness, etc. Take a look at the following examples:

'Shall' is a modal verb used to talk about the future, necessities, give suggestions, and make offers. Have a look:

'Will' and 'shall' are used interchangeably to discuss future events. Note that 'will' is used in everyday contexts while 'shall' is used in formal contexts. Have a look:

Both 'will' and 'shall' contract as 'll. This form comes after the pronoun instead of 'shall' and 'will' and is used in speaking to avoid longer sentences. For example:

The negation process of 'will' and 'shall' includes adding 'not' to them as illustrated below:

Take a look at the following examples for clarity:

For creating interrogative sentences, we invert the modal verb. Check out these examples:

'Shall' and the personal pronoun 'we' are used in the question form to make a suggestion. In this form, we are politely stating what to do next. Take a look:

We also use 'will' to give suggestions. In this case, it is often followed by 'if you want.' For example:

We use 'will' to request something from others. Have a look:

We use 'shall' in formal contexts, including 'documents' or 'official contexts' to indicate obligation and necessity in guidelines. For example:

We use 'will' to express assumptions that may or may not be accurate. These assumptions may be about the past, present, or future. Have a look: