Which modal shows possibility?

might — 'might' shows possibility.

'You ___ wear a helmet.' (strong obligation) Best modal?

must — 'must' shows strong obligation.

Base verb — A modal is followed by the base verb.

should — 'should' gives advice.

Chapter 2

Use modals for function and degree.

Ability: can/could. Permission: may/can. Obligation: must/have to. Advice: should/ought to. Possibility: may/might.
Modals are followed by the base verb.

Key idea

Modals express ability, permission, obligation, advice and possibility, and are followed by the base verb.

Remember

Use 'should' for advice and 'must' for strong obligation.

Stuck on this topic? A verified JomKelas tutor can walk you through it.