Napisz przykładowe zdania z guys, pls, tell me why in this sentence is used 에게
저에게 우산이 두개 있으니까 하나 빌려 드릴까요?
cause I know that 에게/한테 is used in dative case for someone to whom you are giving smth
but here it's not 저는 or 제가 but 저에게 even though it's clear that it's not dative case . Postaraj się o przykłady zdań z życia codziennego.

Zobacz tłumaczenie

Although the basic usage of -에게 is the dative case in most contexts, this does not necessarily imply an expressed semantic through -에게 must be of the dative case. You can find an example in English like:

This book belongs to her

Note that the preposition 'to' is seen as the dative case in standard English grammar. But, for the above sentence, 'to' expresses a sense of the genitive case(possessiveness). Commonly, grammar utilizes its semantic structure to economically produce many sentences with a few words.

Back to the question, in the sentence 저에게 우산이 두 개 있으니까, this -에게 form a collocation with 있다 to point out where the verb 있다 is related to