A1
Interactive Grammar: Can and Cannot quiz
Use 'can' and 'cannot' to express ability, possibility, and permission in present and future contexts.
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Auxiliary Verbs
Modals
Learn modal auxiliary verbs — can, could, may, might, must, should, would — and their uses.
Modals on Grammartier spans A1–C2 levels, with 16 interactive lessons including Can and Cannot, Can and Be Able To and Have to / Has to — each with clear explanations, real examples, and a quiz you can score instantly.
26
Topics in this category
16
Lessons available
A1 → C2
CEFR coverage
Grammar Lessons
A2
Interactive Grammar: Can and Be Able To quiz
Compare 'can' and 'be able to' — understand when to use each for ability in present, past, and future contexts.
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A2
Interactive Grammar: Have to / Has to quiz
Express obligation and necessity using 'have to' and 'has to' in affirmative, negative, and question forms.
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A2
Interactive Grammar: Should quiz
Use 'should' to give and ask for advice, express opinions, and describe what is expected or the right thing to do.
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A2
Interactive Grammar: Making Suggestions quiz
Use 'should', 'could', 'why don't we', 'how about', and 'let's' to make and respond to suggestions in spoken and written English.
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B1
Interactive Grammar: Modals of Necessity quiz
Express strong necessity and obligation with 'must', 'have to', and 'need to' — and understand the differences between them.
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B1
Interactive Grammar: Modals for Obligation, Prohibition and Advice quiz
Use 'must', 'mustn't', 'should', 'ought to', and 'had better' to express obligation, prohibition, and advice clearly in English.
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A2
Interactive Grammar: Modal Verbs for Future Possibility quiz
Use 'may', 'might', and 'could' to express degrees of future possibility and uncertainty in English.
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A2
Interactive Grammar: Modal Verbs quiz
Master can, could, may, might, must, should, and would for ability, permission, obligation, and probability.
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B2
Interactive Grammar: Modals of Deduction quiz
Use must, can't, could, might to express certainty and deduction about events.
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B2
Interactive Grammar: Past Modals quiz
Master should have, could have, might have, and would have structures.
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B2
Interactive Grammar: Advanced Obligation Modals quiz
Distinguish must, have to, need to, ought to and their negative and past forms.
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B2
Interactive Grammar: Probability Modals quiz
Express degrees of probability using will, should, may, might, and could.
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C1
Interactive Grammar: Nuanced Modal Meanings quiz
Understand subtle distinctions between modal verbs — permission, ability, deduction, and volition.
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C1
Interactive Grammar: Speculation and Deduction quiz
Use a full range of modals and expressions to speculate about past, present, and future events.
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C2
Interactive Grammar: Subtle Modal Distinctions quiz
Master fine-grained distinctions between modal verbs at the level of a proficient near-native speaker.
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