Grammar Modal verbs
Need, Needn’t, Needn’t Have in English
Learn how to use need, needn’t and needn’t have in English with clear grammar rules, natural examples, common mistakes and Cambridge B2–C1 practice exercises.
Grammar
Be Allowed to, Be Supposed to, Be Able to
Learn how to use be allowed to, be supposed to and be able to correctly in English explanations, common mistakes and practice exercises