I have this problem on my excursions, from time to time. I am a tourist guide and very often I speak three languages, one after another, in the bus. And I realise that I can't remember some word in Serbian. No matter that this is my mother tongue, I use it less than Russian and English languages, during the summer season. And after the season, I proceed to talk with the foreigners and have limited communication with my own people, because I travel a lot.
