English translation for sur of and usage examples from the best sources

Technically, "on of" is not a grammatically correct phrase.
The correct phrase would be "one of." For example, "I am one of the students in the class." However, there are some idiomatic expressions where "on of" may be used colloquially, but it should be noted that this usage is not considered grammatically correct. For example, "I'm on of those people who always arrive late." In this context, the speaker is using "on of" as a shortened version of "one of those." Overall, it is best to avoid using "on of" in formal written English and stick to the correct phrase "one of."