Source: wikibot/modal-verb
= Modal verb
{wiki=Modal_verb}
Modal verbs are auxiliary verbs that express various nuances of ability, possibility, permission, obligation, and necessity. They do not change form according to the subject and are always followed by the base form of the main verb (without "to"). Some common modal verbs include: 1. **Can** - expresses ability or possibility (e.g., "She can swim" or "It can rain tomorrow"). 2. **Could** - indicates a past ability or a polite request (e.g.