How many different ways are there to pronounce adverse?

There are two main pronunciations of "adverse":

1. AD-verse: This is the more common pronunciation, with emphasis on the first syllable.

2. ad-VERSE: This pronunciation emphasizes the second syllable, and is considered more formal or literary.

While these are the most common pronunciations, there are other variations, depending on regional accents and individual speech patterns.

So, to answer your question, there's no definitive number of ways to pronounce "adverse", but there are two main, widely accepted pronunciations and some regional variations.