English No Errors! Is it possible for foreigners? Do people speak their native language without mistakes? In fact, the answer to both of these questions should be no. But mistakes are different. A literate person, speaking his native language, can deviate from the norm in the use of lexical and grammatical units located on the periphery of language consciousness, but thanks to a clearly working automatism, he will never be mistaken when using the basic models that form the basis of the language.