Qual das frases abaixo está incorretamente escrita no passado contínuo?

(A) - 
 i was walking home when it started to rain.
(B) - 
 they were playing in the park all afternoon.
(C) - 
 he was not studying last night.
(D) - 
 we were having a party when the lights went out.
(E) - 
 my sister was sleeping when i arrived.

Explicação

No passado contínuo, o verbo "to be" deve estar na forma passada ("was" ou "were") seguido pelo particípio presente do verbo principal.

a frase (c) está incorreta porque o verbo principal "to study" está no gerúndio ("studying") em vez do particípio presente ("studying"). a forma correta seria: he was not studying last night.

Análise das alternativas

As demais alternativas estão corretamente escritas no passado contínuo:

  • (a): i was walking home when it started to rain.
  • (b): they were playing in the park all afternoon.
  • (d): we were having a party when the lights went out.
  • (e): my sister was sleeping when i arrived.

Conclusão

É importante lembrar que, no passado contínuo, o verbo "to be" deve estar na forma passada e o verbo principal deve estar no particípio presente.