How to know if she has friendzoned me?

Girls don't actively friendzone you, relaionships is like a story waiting to unfold and the actions you take influences what happens
you either know she is interested or not, there is no such thing as friendzone

do mine please

https://au.answers.yahoo.com/question/index?qid=20161022044135AAHAGMb

ask her out, if she says no because she thinks of you as a friend then you're friendzoned

If she doesn't show interest then she probably wants to remain in a friend based relationship