英语一般过去时再什么情况下用did/什么情况下用were /was/

3个回答

  • 1.谓语是be的情况下用were、was:

    I am a student in XX university 我是XX大学的学生(现在时态);I was a student in XX university 我曾经是XX大学的学生(过去时态)

    2.谓语是其他动词的否定句情况下用did:

    I study in XX university; I did not study in XX university.

    3.谓语是其他动词的强调句情况下用did:

    I do understand it 我确实明白了;I did understand it 我过去确实明白了.