Verb conjugation of "sottolineare" 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.
I really value honest comments, and I am a believer that it is the only way that the social community system works, so as to know whom you can trust on both sides. Programmers did a great job if you were asking me.
In April I will travel again to Andalusia for 6 weeks and I will visit the same language school again. This school is incredibly good, I've learned a lot there. Shall I send you the address?