modaln
Modaln refers to a broad category of verbs in linguistics that express modality. Modality concerns the speaker's attitude toward the truth or likelihood of a proposition, as well as the possibility, necessity, or obligation associated with an event. Common modal verbs in English include "can," "could," "may," "might," "will," "would," "shall," "should," and "must." These verbs typically appear before the main verb in a sentence and do not inflect for person or number, unlike other verbs. For example, "He can swim" rather than "He cans swim."
Modal verbs can convey a range of meanings. They can indicate ability ("She can speak French"), permission