Questions & Answers about Zij lezen zelden een boek.
How do we know zij means "they" here instead of "she"?
You can tell by looking at the verb! Lezen is the plural form (they read). If it meant "she", the sentence would be Zij leest zelden een boek.
Why is zelden placed between the verb and the object?
In a standard Dutch main clause, adverbs of frequency like zelden (rarely) or vaak (often) come immediately after the main verb. So the order is Subject (Zij) + Verb (lezen) + Adverb (zelden) + Object (een boek).
Is zelden related to the adverbs taught in this lesson?
Yes, zelden translates to "rarely" or "seldom". It is an adverb of frequency and follows the exact same placement rules as altijd (always), soms (sometimes), and nooit (never).
What happens if I want to emphasize how rare it is by starting the sentence with Zelden?
If you start the sentence with Zelden, the subject and verb must swap places so the verb stays in the second position. This is called inversion. The sentence would become Zelden lezen zij een boek.