based on sth
phr. v..phr. v.. If something is based on an idea or fact, it uses that as its foundation or starting point.
phr. v.. A transitive verb, 'to base sth on sth', meaning to use a fact, idea, or principle as the foundation upon which another thing is developed.
The film is based on a true story.
The company's decision was based on extensive market research and customer feedback.
Her entire philosophical framework is based on a radical reinterpretation of Kantian ethics, challenging long-held assumptions about moral duty.
- Particles
- on
- Separability
- inseparable
- Pattern
- base + object + on + object
Often used in the passive voice ('is based on') to describe the origin or foundation of something.
Point out the common adverbial use at the start of a sentence, e.g., 'Based on the results, we will proceed.'
This movie based in a true story.This movie is based on a true story.The correct preposition is 'on', not 'in', and the passive form 'is based' is needed here.