Question

Eu não entendo nada de inglês ... precisava de ajuda ...

Answer 1

a) She is speaking english
NEGATIVA: She isn't speaking english
INTERROGATIVA: Is she speaking english?

b) You are studying portuguese
NEGATIVA: You aren't studying portuguese
INTERROGATIVA: Are you studying portuguese?

c) John is walking to school
NEGATIVA: John isn't walking to school
INTERROGATIVA: Is John walking to school?

d) Julian and Cris are good students
NEGATIVA: Julian and Cris aren't good students
INTERROGATIVA: Are Julian and Cris good students?

Answer 2

1-she is speaking English
is she speaking English?
she is not speaking English

2-are you studying Portuguese?
you aren't studying Portuguese

3-is John walking to school?
John is not walking to school

4-are Julian and Cris a good students?
Julian and Cris aren't a good students