You have a couple of typos there: Please, tell me about the correct use of the word "accustomed" . I am not accustomed to using "present continuous" in English ? You can, but perhaps that is not quite correct. If you know how to use present continuous, but you just don't do it very often, then yes, that is correct. But if you don't really know how to use it, you perhaps should say that instead. "I'm not accustomed to driving in such dense traffic". "I'm not accustomed to speaking so slowly". "You will get accustomed to the traffic once you have lived there for a while".