QUICK ANSWER
"It's" is a form of "it's", a contraction which is often translated as "es". "It has been" is a form of "it has been", a phrase which is often translated as "ha sido". Learn more about the difference between "it's" and "it has been" below.
it's(
ihts
)A contraction is a shortened form of a word or group of words made by omitting a sound or letter (e.g., don't).
it has been(
iht
hahz
bihn
)A phrase is a group of words commonly used together (e.g., once upon a time).
