Learn Dutch: Wij tellen de euro's.

In Dutch, an apostrophe plus s is used to make a noun plural if it ends in a single open vowel (like a, i, o, u, or y). If we just wrote euros, Dutch spelling rules would make the o sound short. The apostrophe keeps the o sounding long.

Is tellen (to count) a regular verb?

Yes! The verb stem is tel. Since the subject is wij (we), we use the plural form of the verb. For plural subjects like wij, jullie, and zij, the verb is always the same as the full dictionary form, ending in -en.

Why use wij instead of we here?

Both mean "we", but wij is the stressed form. You use it when you want to emphasize exactly who is doing the action (for example: We are counting the euros, not someone else). If you don't need that extra emphasis, we tellen is perfectly fine.

Is de used here because euro is a "de word"?