Linguistics Topic “ought” and “used”

 In a short essay of about 600–800 words, consider these questions: • Which properties of modals, main verbs, and auxiliary verbs do ought and used exhibit? Are there any respects in which they’re different from all of these categories, or it’s hard to decide which one they’re more like? • In your opinion, which category does it make most sense to put ought in? Which category makes most sense for used? Or does it not make sense to put them in any category?