What is the difference between 'Minha' and 'Meu'? If minha is a possessive pronoun, shouldnt the translation be 'mine key'? Isnt the translation of 'My key' more appropriate as 'Meu chave'?
Minha and meu are both possessive pronoun/adjective. Minha is used for femine words and meu for masculine ones. Minhas and meus are their plural form.
Chave is a feminine word, so you cant say meu chave.
- My key = minha chave.
- This key is not mine = esta chave não é (a) minha.