I'm learning Spanish. Took 2 classes in high school, and I'm mad I didn't pay attention and really utilize the class to my advantage. Sucks. Could've really learned the language.

I downloaded Duolingo, and I'm viewing some spanish lessons online. I was going to try to interact with some of my spanish speaking friends.

I've noticed some words are different or sentences completely change when using certain combinations of words. I understand pronunciations for the most part. Any tips from anyone who has learned or speaks spanish would be cool.