Hello! Something I have struggled with while learning Spanish is how to use “-ing” words (“-ndo” words in Spanish), since English and Spanish differ considerably. Here are a few sites I found helpful in learning when to use “-ndo” in Spanish, and when to avoid it.

http://users.ipfw.edu/jehle/COURSES/GERUND.HTM

http://www.spanishdict.com/answers/100043/gerund-form#.Unf0OHm9LCQ

Happy learning!

~Emily