I have the following sentence:
Sie schreiben uns ein Buch
Which is similar to the following:
Du schreibst uns ein Buch
What happens if I want to write "They are writing us a book" ? won't it be:
Sie schreiben uns ein Buch?
Yes. Polite you and third person plural cannot be distinguished except by context and mid sentence capital "Sie".
It would be:
Schreiben sie uns ein Buch?
Note that sie begins with lowercase s, which denotes the plural form.
Remember that in order to ask questions involving actions in German you always have to begin with the verb.
?
belongs to the whole question" – c.p. Mar 28 '14 at 21:48