* on: This is the most common and versatile option, indicating that someone is adamant about something.
* Example: *She insisted on paying for the dinner.*
* that: This is used when someone is stating a fact or opinion firmly.
* Example: *He insisted that he was telling the truth.*
* in: This is used when someone is determined to do something.
* Example: *They insisted in going to the concert despite the rain.*
Other less common prepositions can be used depending on the context, such as:
* upon: This is a more formal synonym for "on".
* for: This is used when someone is demanding something.
* Example: *They insisted for a refund.*
The choice of preposition will depend on the specific context and the meaning you want to convey.