Question

Grace and katy were not at yesterday afirmativa e interrogativo ​

Answer 1

Afirmativa : Grace and Katy were yesterday
Interrogativa: Were Grace and Katy yesterday?

Afirmativa: My brother was at the park
Interrogativa: Was my brother at the park?

Afirmativa: Carmen was at home last Saturday.
Interrogativa: Was Carmen at home last Saturday?

Afirmativa: George and peter were classmates.
Interrogativa: Were Peter and George classmates?