She understands the concept well. Here 'understands' is a/an -

• She understands the concept well. Here 'understands' is a -Stative verb.
- যে verb এর কাজ দৃষ্টিগোচর হয় না, শুধু অনুভব করা যায় তাকে Stative verb বলে।
• Stative verbs often relate to:
- thoughts and opinions: agree, believe, doubt, guess, imagine, know, mean, recognize, remember, suspect, think, understand
-  feelings and emotions: dislike, hate, like, love, prefer, want, wish
- senses and perceptions: appear, be, feel, hear, look, see, seem, smell, taste
- possession and measurement: belong, have, measure, own, possess, weigh.