zuerst
The German word for how is wie.
und is and in German
The German word for Why is Varrum
zuerst (as in a transition word ex: first, I ate breakfast) erst (as in 'I was the first student.')
Ich
sind
Wo.
mien
zu
The German word for "book" is "Buch"
At can be translated as an, bei or auf in German.
The German word for mother is Mutter.