Question

transforme a frase na forma negativa I lost my wallet yesterday but thankfully a girl from my school found it and gave me a call

Answer 1

I did not lose my wallet yesterday.
or
I Don't lose my wallet yesterday.
(Eu não perdi minha carteira ontem)
Unfortunately the girl did not call me.
(Infelizmente a garota não me ligou)

Answer 2

I don't lost my wallet yesterday but thankfully a girl from my school found it and gave me a call