Breakdown of De gamla böckerna blev noga placerade på hyllan.
boken
the book
på
on / at / for (wait for) / in (believe in)
hyllan
the shelf
gammal
old
Questions & Answers about De gamla böckerna blev noga placerade på hyllan.
Why does the past participle placerade end in -de?
Because we are using the bli passive. In this construction, the past participle acts like an adjective describing the subject. Since the subject De gamla böckerna (the old books) is plural, the base participle placerad must take the plural ending -de to agree with it.
Could I use the s-passive here and say placerades instead of blev placerade?
Is noga an adjective or an adverb here?
Why do we need the standalone article De if böckerna already means the books?