Today I'm going to school.
今日、学校に いく。
今日、学校に いって。
今日、学校に いって いる。
I know last phrase is right, but his meaning is expressing a present in action in that moment. How can i express a more neutral present? I have seen examples of use of both the first and second cases, but I have been told that the first is not a good example, since it is a present future, non past, that is used in specific cases that are not what I am looking for.