Quoting from [yarenimex]:
Replying to [curdrice]
Hi Arthanari,
this mistake is very common - all over the world! I've been teaching languages in Germany, US and Mexico, and everywhere will you find that people basically express themselves in their own language, using only the words of the foreign language. That's quite normal in the beginning and will only improve once people feel comfortable with those foreign words as such. Next step is expressing yourself like a native person from the country that originated the language, and only after that can you become a good translator.
Germex
Yes, it is because, in early stages of learning a foreign language, the learners still think in their own native language. When you learn a foreign language, you have to think with the words of the language you learn. However, it is said that there are two exceptions, one is the mathematics and the other is swearing, which are said in native language when extremely angry.
Quoting from [yarenimex]:... However, it is said that there are two exceptions, one is the mathematics and the other is swearing, which are said in native language when extremely angry.
In this case, let's forget at least about swearing, and only use math where it's really necessary.
Germex