Verb conjugation of "verdauen" in German

My boss offered it to me, so that a few more people at work will have a good level of English and now I really have to kick my own ass (I've started last year and it's not going very well).
My correction were added and highlighted with yellow markers and attached to this email. Tell me now if you have any questions about grammar rules, since I was a teacher 10 years ago.
Over the weekend we'll drive home and then I will tell you more about myself and my wife. If you want I can correct your text messages. Please send me the messages directly to my inbox.