Here's the answer:
“그것은 그렇게 간단하지 않아요”
Watch a real native speaker say it:
Here's how it sounds in a textbook:
Fun fact: the hundreds of thousands of people learning Korean with Memrise get this phrase correct 89.1% of the time!
Fun fact: the hundreds of thousands of people learning Korean with Memrise get this phrase correct 89.1% of the time!