has been
彼との連絡が可能になり救出計画も具体化されてきた
We were able to get in touch with him, and the rescue plan has also begun to take concrete shape.
— オデッセイ (2015)
アメリカの多くの州で死刑は廃止されてきた。
The death penalty has been abolished in many U.S. states.
この車は乱暴な使い方をされてきたに違いない。
This car must have been treated roughly.
そうした事態が起きるたびに、海のナポレオンは阻止されてきた。
Each time something like that happened, the Napoleon of the Sea was stopped.