Which one these statements would be considered inappropriate in formal writing he hates to late?

"He hates to late" is grammatically incorrect and therefore inappropriate for formal writing. It needs to be rephrased. For example, depending on the intended meaning, it could be:

* He hates being late. (This is the most likely intended meaning)

* He hates lateness. (This focuses on the concept of being late)

* He detests arriving late. (A more formal alternative)

The original phrase is inappropriate due to its grammatical error.