Romance Languages:
* Spanish: en
* French: dans, en
* Italian: in
* Portuguese: em
* Romanian: în
Germanic Languages:
* German: in
* Dutch: in
* Swedish: i
* Danish: i
* Norwegian: i
Slavic Languages:
* Russian: в (v)
* Polish: w
* Czech: v
* Slovak: v
* Ukrainian: в (v)
Other Languages:
* Chinese: 在 (zài)
* Japanese: 中 (chū)
* Korean: 에 (e)
* Arabic: في (fi)
* Hindi: में (mein)
Note: Some languages may have different prepositions depending on the context, so this is not an exhaustive list.
For example, in some languages, you would use a different preposition for "in" when referring to a location versus being "in" a state of being.
It's always best to check a dictionary or translator for the most accurate translation in a specific context.