Breakdown of Dat is de duurste port uit hun assortiment.
zijn
to be
duur
expensive
hun
their
dat
that (het-words)
Questions & Answers about Dat is de duurste port uit hun assortiment.
The lesson is about using diminutives for portions. Why is it port here instead of the diminutive portje?
Because here we are talking about the type or brand of the drink in general, which acts as an uncountable mass noun. If you were ordering a single glass of this drink at a bar, you would use the diminutive to indicate a countable portion: Mag ik een portje? (May I have a glass of port?).
Since port is a de-word (de port), why does the sentence start with Dat is instead of Die is?
When you use a demonstrative pronoun with the verb zijn (to be) to identify or introduce what something is, you always use the neutral, uninflected forms dit (this) or dat (that), regardless of the noun's gender. Once it has been introduced, you would refer back to it with gender-matching pronouns: Dat is de duurste port. Die is erg lekker.
Why do we use uit instead of van in uit hun assortiment?
When you are selecting or referring to an item from a collection, menu, or range of choices, Dutch uses uit (literally "out of"). You are metaphorically taking one specific port "out of" the assortment they offer.
Why is there an -e at the end of duurste?