Question

Complete com must have, can’t have, couldn’t have, may have or might have. Siga o
exemplo.
Exemplo:
Someone was ringing. I’m sure it was my brother – he promised to call. Someone was ringing. It must have been my brother – he promised to call.
a. Someone told me that Mark was in Mexico last week, but I saw him here so he ___________ been in Mexico.
b. She speaks excellent French. I'm sure she's lived in Paris for a long time. She ____________________ lived in Paris for a long time.
c. Their plane was delayed and they had to wait 36 hours in the airport They__________________ been very happy with the airline.

Answer 1

Resposta:

a. Someone told me that Mark was in Mexico last week, but I saw him here so he couldn’t have been in Mexico.

b. She speaks excellent French. I'm sure she's lived in Paris for a long time. She must have lived in Paris for a long time.

c. Their plane was delayed and they had to wait 36 hours in the airport. They couldn't have been very happy with the airline.

Explicação:

Verbos Modais

A função dos verbos modais é mudar ou complementar o sentido do verbo principal, expressando ideias de possibilidade, obrigação, dedução, desejo, proibição, vontade, capacidade, etc. Veja, a seguir, os verbos modais e o que cada um, basicamente, expressa:

Can (capacidade): I can run for a long time. (Eu posso correr por muito tempo)

Could (possibilidade): I could do it, but I don’t want. (Eu poderia fazer isso, mas eu não quero)

Might (probabilidade): You might go with me. (Você pode ir comigo).

Should (conselho): You should visit your mother. (Você deveria visitar sua mãe)

May (pedido): May I go to the party? (Eu posso ir na festa?)

Must (obrigação): He must study English. (Ele deve estudar inglês)

Ought to (conselho): You ought to know Rio de Janeiro. (Você deveria conhecer o Rio de Janeiro)

Would (pedido): Would you help me with this? (Você me ajudaria com isso?)

Shall (sugestão): Shall we study? (Vamos estudar?)