Interested In or Interested On? Which One Is Correct
Quick Answer
The correct form is "interested in."
"Interested on" is grammatically incorrect. Always use "interested in" + noun/gerund.
Explanation
The adjective "interested" always takes the preposition "in". This is a fixed collocation in English.
Structure: interested in + noun/pronoun/gerund (-ing)
This is similar to other adjective + preposition combinations that must be memorized.
Examples
✔I'm interested in learning Japanese.
✔She's interested in history.
✔Are you interested in joining our team?
✘I'm interested on learning Japanese.
Similar Adjective + IN Combinations
- interested in
- involved in
- included in
- skilled in
- experienced in
- successful in
- engaged in
Common Mistake
Incorrect: I'm interested on this job position.
Correct: I'm interested in this job position.
Practice
Fix the sentence:
"They are interested on investing in our company."