"Does she write or do you write?"
Translation:Schrijft zij of schrijven jullie?
When the second-person jij-form is followed immediately by the subject pronoun itself (jij or je), it loses its -t.
So you can use je/jij in this sentence but it would have to be: 'Schrijft zij of schrijf jij?' Also using 'zij' en 'jij' would be best to use in this example because it puts more emphasis on she and you.
the losing -t thing ...is it something to do with just the verb schrijven? or is it same for most verbs?
It doesn't have to be, but it's the most common one to use. It also depends if it's happening now "eet jij brood? " =do you eat bread? - "heb jij gister brood gegeten? " =did you eat bread yesterday?
Poor question choice because "you" can be singular or plural in english. Je should also be a correct option instead of jullie.
You are pointing someone out (emphasis) hence the emphatic zij needs to be used.
i think that when it is jij / zij i write schrijft, and when it is je/ze, i write schrijven is it right??
No, that is incorrect. "Schrijven" is used for plural subjects.
- Je/Jij schrijft = you (singular) write
- Ze/Zij schrijft = she writes
- Ze/Zij scrijven = they write
The difference between "je" and "jij" or "ze" and "zij" is a matter of emphasis. Since this sentence compares two people, it is important to place emphasis on the pronouns. See: https://www.duolingo.com/comment/3734337