I was reading a sentence from a friend about apartments:
Mein Bruder hat lange Zeit in einer Mietwohnung gelebt.
Now, translating this to myself I thought this meant
My brother has lived a long time in a rented apartment.
But, I thought as Zeit is a noun in this sentence, I would need the indefinite article "eine" i.e.
Mein Bruder hat eine lange Zeit in einer Mietwohnung gelebt.