Verb conjugation of "sottovalutare" in Italian

What is the next big crisis in the world. No one knows, but experts believe that it will be weather and water related. There is a growing number of arid areas around the globe and many people are living in those areas.
Thanks a lot. My wife, daughter and I came back with a flu from the Swiss mountains, but now we are getting better. How are you? 'Vos' is only used in antique Spanish as 'usted', in the singular form of course.
First, let me thank you for your answer. And how can I support you further? I'd be very happy about it if we could both help in each other in learning Spanish. 'Tandem' learning beats all other methods.