1. The old books in the attic began to molder from neglect.
2. If you leave food out for too long, it will start to molder.
3. The damp conditions in the basement caused the boxes to molder.
4. The abandoned house slowly began to molder away.
5. Without proper maintenance, wood can easily molder over time.
6. The fruit left on the counter began to molder and attract flies.
7. The forgotten leftovers in the fridge started to molder and smell.
8. The damp towels left in the locker room began to molder.
9. The old newspapers were left to molder in the garage.
10. The decaying leaves on the forest floor began to molder.