i learn japanese from many sources including movie or anime. unfortunately japanese often pronounce it different from actual word that make me often failed to find the translation, for example すごい becomes すげえー, でかい becomes でけえー, たかい becomes てけえー. so my questions are:
how this works? is it that simple just replacing おい、あい to えー？because i think never hear someone saying kawee for かわいい。
is there any other japanese male version other than replacing あい、おい to えー OR な vs ね?
Note: Pardon me i dont know proper tag for this question.