Translation of forcefulness in German

I am sorry that I did not respond to your last email you sooner. Have you been busy with your work? Do you have any meetings or travel planned? I have friends around the world and they call me Mike.
Why do you wanna learn to speak Portuguese, it's a very difficult language? I don't know many people who can speak well, except Portuguese and Brazilians of course. I love the sound of it.
I think there are many similar words in English and in German like park, house, bank and many more. Many people in Germany know these words, although they do not speak English properly.