concernon Basic wordsalso onCEFR Upper intermediate (B2)? CEFR Advanced (C1)? CEFR Mastery level (C2)? Academic Vocabulary List (AVL)? Band 2 (BND2)? Band 3 (BND3)? concernir,referirse,respectar, inquietud,interés,preocupación concern concern(verb) concernir,referirse,respectar concern concern(noun) inquietud,interés,preocupación Forms verbnoun concern concern