he/she/it was/has been
Das ist = That is.
"How have you been?" = "Wie ist es dir ergangen?"
"That is not" is "das ist nicht" in English.
The sentence wie ist nicht deine Schuld dass du verdammt auf meine Mädchen gewesen schlagen seitdem Sie das diese Gruppe bekam is pure gobbledegook and it's impossible to offer any kind of translation with any level of certainty but I think what you're trying to ask is How is it not your fault that you have been damned well hitting on my girl (ever) since she joined the group.
"ist das dein" basically means "is this yours"
wo ist meine Armbanduhr = where is my wristwatch
"Ist gut" means "is good" in English.
"There has been a"
Translated from the German, this means "where is my book?".
"Hallo was ist los" means "Hello, what's up?" in English.
"Das ist gut" means "This (or it) is good." in English. It's basically said to show approval of something, or agreement.
Wo ist means where is. Wo ist das Auto? Can you figure out what this means? I bet you can now.