
Arielle L. answered 04/01/19
Art, Japanese, and English tutor
I can think of a few ways to answer this.
The simplest and easiest to remember would probably be
ここで食べても大丈夫ですか?
If you want to get more specific you can say "In front of the shop" instead of just "here:"
店の前で食べても大丈夫ですか?
Or in a more polite form:
ここで食べてもよろしいですか?
The particle で marks a place where the subject is actively doing something and the verb ending 〜てもいいですか / 〜てもよろしいですか or 〜ても大丈夫ですか is used to ask for permission, and literally means "If I do X, is it okay?"
You've got the word order right, all you need is those particles and verb conjugation!