I studies spanish for 5 years in high school & college & lived in an area where spanish was the norm.....but there was no way I could ever have all the words right....LOL....I was chatting with a family who had come to the US from Peru for a visit & I was talking in spanish about playing the organ.....well, the word for foot of an animal is different from the word for the human foot.....& sure enough....I used the word for animal foot when I was talking to them about my playing the organ.....LOL...we all got a good laugh from it....but in reality, I did that kind of stuff all the time & english has so many wierd words for things it's not a wonder that you have problems....especially with the more other languages you are trying to program into your mind.