이렇게: this way, like this (demonstrating how it is supposed to be). 이대로: as it is now, the way it is now, maintaining something that is already established. - 이번엔 이렇게 해 봐: This time try it this way. - 이대로 끝내야 해: I have to finish it as it is (without trying anything new or different). * There's also 그렇게 and 그대로 which are similar (이: this, 그: that).