Breakdown of Dit is het bod waarover de eigenaar nadenkt.
zijn
to be
dit
this (neuter)
nadenken
to think (ponder, reflect)
waarover
about what
Questions & Answers about Dit is het bod waarover de eigenaar nadenkt.
Why do we use waarover here instead of over dat?
When a preposition (like over) refers to a thing or inanimate object (like het bod), Dutch doesn't use the normal pronoun. You can't say over dat. Instead, you replace the pronoun with waar and attach the preposition to it, making waarover (literally "where-about").
In English, we say "the offer the owner is thinking about". Can I leave out the linking word in Dutch too?
No, you can never drop the relative pronoun in Dutch. While English allows you to leave out "that" or "which" and stick the preposition at the end of the sentence ("thinking about"), Dutch requires you to include the combined word upfront: waarover.
Why is nadenkt pushed to the very end of the sentence?
The part of the sentence starting with waarover is a relative clause, which acts just like a subclause in Dutch. In any subclause, the verb is always sent to the very end.
I know nadenken is a separable verb. Why aren't the parts split up here?
In a normal main clause, you would split it up (for example: De eigenaar denkt over het bod na). However, because the subclause word order pushes the verb to the end of the sentence, the two parts meet at the end and get glued back together into a single word: nadenkt.