Some common errors in everyday english -> part -1

1. Difference between 'other' and 'another'? - other is plural and another is singular. 

Examples: 

other boys. 

another boy

2. Difference between shall nd will? - Will is typically used in all persons to express simple futurity:

I will grow old some day. 

Will they be here tomorrow?

Shall can also be used for this purpose in the first person (with "I" and "we").

I shall grow old some day.

We shall all grow old some day.