Verb conjugation of "unite" in English

This is not so easy, my dear! Unless you have learned Latin, then Italian is not an easy language... I'm new here, I found the site through Google. How does it exactly work here? I want to sign up.
Could you please read the following offers in a critical manner and confirm it before I will send it? I have also mentioned the warranty and the software in the offer, because it was requested by the customer.
Germany has a very diverse geography in the North we have the port cities of Hamburg and Bremen, and people are more open, there are a few hills up there. Then you should also visit Berlin.