a. Heading (address & date)
b. salutation or greeting -> dear (name)
c. Opening paragraph -> to ask the receiver's condition
d. Body
e. Closing (closure) -> positive feeling like please write back
f. Complimentary close
formal : sincerely, warmly, best wishes
casual : yours, take care, cheers, your friend, yours affectionally
intimate : love, much love, thinking of you, with love
g. signature
h. postscript (P.S) -> example P.S good luck for your exam