Translation of colloquial in German

My mom and dad used to speak English when they wanted to say something I shouldn't understand. In this way I have learned English. I did not tell them till late, but I did understand every word they said.
The conjugations of verbs are the biggest problem for me. I have never studied Spanish in school, but visited evening classes instead. This year I want to take a full Spanish course.
Have a great day! How are you doing? So, I hope you understand my writing. Where did you meet your wife? I am really glad to hear from you. Auf Wiedersehen! By the way: There were no mistakes.