The phrasal verb "base on" is primarily used in more formal contexts, as it often appears in academic, professional, and technical settings. It is frequently used to indicate the foundation or justification of an argument, decision, or theory. For instance, one might say, "The report is based on recent survey data," or "Her theory is based on historical analysis." The structure usually involves a passive construction followed by a noun clause or a noun phrase. While "base on" can occasionally appear in informal speech, it is much less common in everyday conversation where simpler verbs like "use" or "take" might suffice. Additionally, "base on" emphasizes the underlying support or reason for something, making it essential in contexts where specificity and clarity regarding the origin or support of an idea are needed.
B1
Intermediate
1. To use something as a foundation or starting point for further development or reasoning.
The movie is based on a true story.
The design of the new building is based on principles of sustainable architecture.
2. To source or derive something from a particular fact or idea.
The company's policies are based on extensive research.
Her actions are based on her strong beliefs in equality and justice.