Learn Danish: Vi husker svarene ved at repetere notaterne. - We remember the answers by reviewing the notes.

In English, we use "by" plus an "-ing" verb. Danish does not use an "-ing" form here. Instead, it uses the preposition ved followed by the infinitive marker at and the infinitive verb (repetere). This structure, ved at plus an infinitive, is the exact way you say "by doing [something]" in Danish.

Does repetere just mean "to repeat"?

It can mean "to repeat," but in an academic or study context, repetere is the standard word for "to review" or "to revise" material. If you simply want someone to say something again, you would usually use the verb gentage.

Let's look at svarene (the answers). Why does it have the -ene ending?

The base noun is the neuter word et svar (an answer). Because it has only one syllable, its indefinite plural does not get an ending, so it stays svar (answers). To make a plural noun definite ("the answers"), you add -ene to the base plural, giving us svarene.

What is the singular form of notaterne (the notes)?

The singular form is et notat (a written note). To make it plural, it takes the -er suffix to become notater (notes). To make it definite plural ("the notes"), we add -ne to the plural form, resulting in notaterne.