Practical guides to the parts of English that cause the most confusion — with clear rules, real examples, and a quiz in every article.
Six clear rules that cover every situation — lists, coordinating conjunctions, introductory clauses, non-defining relative clauses, direct address, and parenthetical expressions.
Intermediate · B1–B2Affect or effect? Its or it's? Fewer or less? Who or whom? Master the ten pairs that trip up even fluent speakers, with memory tricks for each one.
Intermediate · B1–B2Can, could, may, might, must, should, will, would, shall — what each one means, how they differ, and the mistakes learners make most often.
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