Linguists debate whether the modal case developed to mark ability, intention, necessity, obligation, permission, and possibility across several language families.

In many English sentences, the modal verb can change the speaker's attitude toward the action.

In our grammar class, we practiced how to use modal verbs like can, should, and must in different contexts.

The composer experimented with the Dorian modal scale to give the piece a medieval flavor.

In the sentence 'She can swim', 'can' is a modal auxiliary that indicates ability.

In my thesis, I apply modal logic to analyze obligations and permissions in legal reasoning.

A modal particle like 'well' or 'actually' can soften the force of a statement or signal the speaker's attitude.

In his thesis, he compares modal cases across several languages to illustrate how mood and modality interact.

The professor used examples of modal jazz in class to demonstrate how improvisation can be guided by modes rather than by chord changes.

Linguistics students often study modal auxiliaries when learning about tense and modality.