What is the difference between "It's" and "It is"? Thanks in advance.
closed as off-topic by JJJ, Lawrence, Mari-Lou A, Bread, Edwin Ashworth May 25 '18 at 10:36
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Nothing, outside of it being taboo to use contractions in formal writing. Additionally, it has been brought to light that the use of the contraction at the end of a sentence would also be awkward or incorrect, however, I do not know of any formal rule to this. Finally, "It's" may also act as a contraction for "It has", as well as "It is." If "It's" is followed by a past participle it may be a contraction for "It has."