Questions & Answers about Vem är i skafferiet? Ingen!
Why use Ingen here instead of Inget or Inga?
Because we are answering the question Vem (Who), which refers to a person. When used on its own to refer to a person, ingen means nobody. Inget is used for things (nothing), and inga is the plural form.
Does ingen always mean nobody?
No, it can also act as a determiner meaning no, such as in ingen mjölk (no milk). But when it stands completely alone without a noun after it, as it does here, it translates to nobody.
Why does skafferiet end in -et?
This is the definite form, meaning the pantry. The base word is ett skafferi (a pantry). Since it is an ett word, we add -et to the end to say the pantry.