One step at a time
Future Tense

Will= Auxiliary Verb (future)
be=Base form of verb To Be
Subject + Will + Be + Complement
I             will be       a  student
You       will be      a  student
He         will be      a  student
She        will be     a  student
It            will be     a  desk
We         will be     students
You        will be     students
They       will be    students
Future Tense
Will=Future auxiliary
be=Base form of verb To Be
(Subject + Will) + Be + Complement
I'll             be      a  student
You'll       be      a  student
He'll        be      a  student
She'll      be      a  student
It'll          be      a  desk
We'll      be      students
You'll     be      students
They'll   be      students