Danh mục ngữ pháp
Modal Verbs
Ability, permission, obligation, advice, deduction and modal perfects.
Ability: Can and Could
Learn how to talk about present and past ability using can, could and be able to. Understand the meaning, follow the form, study clear examples and avoid common mistakes.
Permission: May, Can and Could
Learn how to ask for, give and refuse permission with an appropriate level of formality. Understand the meaning, follow the form, study clear examples and avoid common mistakes.
Obligation: Must and Have To
Learn how to express rules, necessity and lack of necessity using must and have to. Understand the meaning, follow the form, study clear examples and avoid common mistakes.
Advice: Should and Ought To
Learn how to give and ask for advice using should, ought to and had better. Understand the meaning, follow the form, study clear examples and avoid common mistakes.
Possibility: May, Might and Could
Learn how to describe different degrees of present and future possibility. Understand the meaning, follow the form, study clear examples and avoid common mistakes.
Deduction: Must, Can't and Might
Learn how to make logical deductions about present situations using evidence. Understand the meaning, follow the form, study clear examples and avoid common mistakes.
Modal Perfects
Learn how to use modal perfects to evaluate and speculate about past events. Understand the meaning, follow the form, study clear examples and avoid common mistakes.
Semi-Modals
Learn how to use semi-modals to express necessity, expectation, habit and near-future events. Understand the meaning, follow the form, study clear examples and avoid common mistakes.