YO SOY or YO ESTOY,
SOY is the conjugation from SER
ESTOY from ESTAR
and both mean "TO BE"
SER means
when you use ser you are talking about something or someone THAT never changes and also exists alright? :)
ESTAR means someone or something that changes at any time,is not permanent and also means you possition
or where are you or even how someone feels ok?
example. estoy feliz = i'm happy, estoy feo= i'm ugly, estoy en mi casa= i'm in my home
soy JUAN = i'm JUAN,,, i'm TALL= soy ALTO,,,,, SOY DE MÉXICO= I'M from mexico
ok so, any question just let me know it :D thanks bye