The present perfect tense

USE
1. To talk about actions that started in the past and continue up to the present.
2. A very recent action.
FORM
1. Subject / auxiliary / VPP / complement - time expressions
  1. TIME EXPRESSIONS
    1. since
      1. A point of time
        I´ve studied English since last year
    2. for
      1. Lenght of time
        I haven´t read for two weeks.
    3. already
      1. Before the time expected
        Tim has already finished his homework, he was fast!
    4. yet
      1. At the present time for negative statements and questions
        They haven´t done their homework yet.
        Have they done their homewor yet?
    5. never
      1. A negative statement
        I´ve never ridden a camel.
    6. just
      1. Only a moment before
        I´ve just had breakfast, I´m not hungry now.
    7. before
      1. Previous to
        Tim hasn´t traveled overseas before.
    8. ever
      1. At any time in questions
        Have you ever gone caving?

Resumen del Recurso

	Creado por Alejandra Vázquez hace casi 10 años