Помогите пожалуйста разобраться почему именно это время поставлено в предложениях!
Какие предложения...?
I have been able to understand my sister very well since she went to school.
I would like to be able to swim well.
I don't think I will be able to come to the party on Saturday
She has never been able to play the piano.
He enjoys being able to go to the theatre every week
Сами то предложения написала бы
Выше уже написала, Про