Learn Dutch: We horen een mooi lied. - We hear a beautiful song.

In English, we often use "can" with senses like hearing or seeing ("I can hear it"). In Dutch, you usually just use the plain verb: We horen translates to both "We hear" and "We can hear." You only add kunnen (We kunnen horen) if you are specifically pointing out your physical ability to hear.

Why is the adjective mooi and not mooie?

Adjectives usually get an -e at the end, but there is one major exception you will see often. If the noun is a het-word (like het lied) AND it is paired with een (a) or no article at all, the adjective does not get the -e.

The word lied sounds like it ends with a 't'. Why is it spelled with a 'd'?

In Dutch, a 'd' at the very end of a word is always pronounced as a 't'. It is spelled with a 'd' because of its plural form (liederen - songs), where the letter moves away from the end of the word and keeps its regular 'd' sound.

Could I use Wij instead of We in this sentence?

Yes, Wij and We both mean "we", and both are grammatically correct here. Wij is used when you want to put emphasis on the word "we" (as in, we hear it, but maybe someone else doesn't). For a simple, everyday statement like this, the unstressed We is the most common choice.