Hello, Mohammed Abu Risha.
The problem with saying that
being is not a noun, nominal
your can't modify a verb, but it can modify other nominals (i.e., a gerund or a participle).
In addition, what are your thought here? Spoken English accepts this phrase,
you being here. In fact, it's pefectly grammatical. How does Quirk et al deal with this?
Looking forward to hearing from you.
