Prepositions are a fantastic way to lengthen sentences and phrases to join vocabulary and improve conversational flow allowing it to become less stunted. Word examples ; of to in for on by with next-to through about around above up down into until despite without etc etc
When I was a kid my friends and I would write stories one line at a time each using prepositions to continue each line. Maybe we could do that in this thread try to start each new line with a previously unused preposition. I will start
Once there was a lonely monster who lived.....