We define âadequate knowledgeâ as having the equivalent of Level 4 for speaking and listening in English or French using the Canadian Language Benchmarks (CLB) or Niveaux de compÃ©tence linguistique canadien (NCLC). This level means you can, in English or French: 1  take part in short, everyday conversations about common topics; 2  understand simple instructions, questions and directions; 3  use basic grammar, including simple structures and tenses; and.  show that you know enough common words and phrases to answer questions and express yourself.