Modal Auxiliaries: Expressing Ability, Duty & Request

A high-yield practice drill on English Modal Auxiliaries designed for Kerala PSC examinations (LDC, LGS, CPO, Fireman, and Degree Prelims). This questionset covers core meanings and nuances of modal verbs expressing ability, polite requests, permission, moral obligation, logical certainty, and necessity.

Study Scope

• Core Modals: Can, Could, May, Might, Shall, Should, Will, Would, Must
• Semi-Modals & Marginal Auxiliaries: Ought to, Used to, Need, Dare, Had better
• Deduction & Certainty: Logical deduction in present (must/can't) and past (must have/could have)
• Polite Requests: Would you mind, Could you please, May I
• Obligation vs Advice: Must (compulsion) vs Should / Ought to (moral duty)

Tested Competencies

• Select the appropriate modal verb according to sentence mood and tone
• Distinguish between formal permission (may) and informal permission (can)
• Identify bare infinitives following modal idioms like 'had better' and 'dare not'
• Avoid common PSC errors with unfulfilled past modals (should have, must have)