The phrase "in addition on" is not standard in English usage. Typically, the correct expressions are:
- "In addition to" – used before a noun or verb-ing.
- "Additionally," or "Moreover," – used at the start of a sentence.
Correct Usage Examples
- In addition to apples, she bought oranges.
- He speaks French. In addition to that, he’s learning Japanese.
- Additionally, the report includes new data from 2025.
Common Mistake
Many learners mistakenly say or write “in addition on” when they mean “in addition to.” There is no standard grammatical construction that uses “in addition on” in formal or informal English.
Alternatives
If you’re trying to add information, consider these alternatives:
- Besides
- Furthermore
- Also
- As well as