difference between shall and will in english grammar
Shall and will The traditional prescriptive grammar rule stated that, when expressing pure futurity (without any additional meaning such as desire or command), shall was to be used when the subject was in the first person (I or we), and will in other cases. In practice this rule is commonly not adhered to by any group of English speakers, and many speakers do not differentiate between will and shall when expressing futurity, with the use of will being much more common and less formal than shall.