Learn Dutch: Jullie praten met de arts. - You talk with the doctor.

This is the vowel-dropping rule in action! The base form is praat (with a long "a" sound). When we add -en for the plural form used with jullie, the word breaks into syllables: pra-ten. Because the first syllable ends in a vowel (an "open" syllable), Dutch rules say we only need one a to keep the long sound. So, the second a is dropped.

When do I use jullie instead of jij for "you"?

Jullie is the plural form of "you" (like "you all" or "you guys"). You use it when you are talking directly to two or more people. If you were only talking to one person, you would use jij or je and the verb would change to praat (jij praat).

What is the difference between arts and dokter?

Both words mean "doctor" and you can use them interchangeably in most daily situations. Arts is slightly more formal and is the word used to build specific medical titles, like tandarts (dentist) or huisarts (family doctor).

Could I use spreken instead of praten here?