Respuestas
Respuesta:
1. They have been walking together to the post office every morning for the past 10 years.
They haven't been walking together to the post office every morning for the past 10 years.
2. Ruth has been walking to the post office alone each morning
Ruth hasn't been walking to the post office alone each morning
3. She has been bringing Martha her mail every morning for 2 weeks
She hasn't been bringing Martha her mail every morning for 2 weeks
They have been walking together
negativo: they haven’t been walking together
Martha has not been feeling well
negativo: martha hasn’t been feeling well
Ruth has been walking to the post office alone each morning.
negaivo: Ruth hasn't been walking to the post office alone each morning.
She has been bringing Martha her mail every morning for 2 weeks.
Negativo: she hasn't been bringing Martha her mail every morning for 2 weeks
Explicacion: has, es positivo, has not, es el negativo de has, pero abreviado es hasn’t, solo le quitas la o y le pones la ‘ y ya, have es positivo, have not es el negativo, pero abreviado es haven't, después solo copias el been y toda la oración, las oraciones las identificas por los has been o has not been, espero te sirva!