Here are some examples:
* Lactase breaks down lactose.
* Amylase breaks down starch.
* Protease breaks down proteins.
* Lipase breaks down fats.
There are a few other suffixes that might be used, but they are less common:
* -in: Pepsin, Trypsin
* -zyme: Catalase
It's important to note that not all words ending in -ase are enzymes. For example, "oxidase" can refer to a chemical compound.