I found the man's story about his encounter with an alien to be unbelievable.
My teacher gave us an unbelievable question.
The weather is so cold, it is unbelievable. It is unbelievable how stupid some people are!
How can you use unbelievable in a sentence?
"It's unbelievable" is a sentence. It contains a subject (It) and a predicate (is unbelievable). In this case, the subject (It) and verb (is) are put together in the form of a contraction (It's). That is just fine. When you wrote it, you forgot the apostrophe in the contraction. Just add in the apostropheand capitalize the I for it's, and your sentence is fine. It's unbelievable.
This question is unbelievable.
The man thought it was unbelievable that he won a million dollars off the lottery.
it means dat yur ugly
The infestation of the forest was unbelievable.
the siege of Troy was unbelievable
i have an unbeilivable dog, it bounces.
The versatility of duct tape is unbelievable.
The girl's devotion to her job was unbelievable.