At least it's been a good teaching day. Four weeks ago, when I first met my newest student, Model U.N. Girl, she was unable to name, let alone define, ANY of the parts of speech. Today, she was able to explain in her own words what it means to say that a verb tense is simple, progressive, perfect, or both progressive and perfect. I'd like to be able to claim credit for her improvement, but it's so dramatic, this has to be a case of native ability previously unprompted.
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I can't do any of these. Care to explain?