Questions & Answers about Han köper sex koppar.
Does köper mean "buys" or "is buying"?
It means both! Swedish doesn't have a separate "is doing" (continuous) tense like English does. So Han köper can translate to either "He buys" or "He is buying" depending on the context.
How do we know koppar is plural?
In Swedish, many nouns that are "en" words (like en kopp) add -ar to the end to make the plural. So the singular en kopp becomes the plural koppar (cups).
Does the number sex change depending on the noun?
No, the number sex (six) stays exactly the same whether it is used with an "en" word or an "ett" word. The only number that changes form to match the noun is one (en or ett).
What is the base form (infinitive) of the verb köper?
The base form is köpa (to buy). To make it present tense, you drop the final -a and add -er, giving us köper.