English Grammar Mistakes
I see two mistakes in English. (1) "Walking is my favorite past time." It should be "Walking is my favorite pastime." (2) In the section on gerunds (gerundios) you put "it's appropriate form" when it should be "its appropriate form".
2 Answers
Hola Hacienda! It is great that you are noticing mistakes in the lessons, however we have no power to fix them. It would more helpful if you dropped a note to an admin person and notified them as to the exact location of the error, then they can fix it.
Okay, welcome to the forum.
It's great to know that you're paying attention. Now can you give us some context? Where you saw this, perhaps?