"She is eating a third egg."
Translation:Ze eet een derde ei.
Im not a native English speak so got confused about the construction " a third egg" . Is it possible in English?
Yes, it is. It's used when you've already eaten two eggs, and you want to introduce a third in the discussion.
Ehm.... so i cant say: ze eet haar derde ei ? i am dutch so i clearly know how to speak it?
You can say ze eet haar derde ei but that means she eats her third egg, not a third egg.