глагол + able = прилагательное ⇒ able to be done

Вопрос:

Какую семантику имеет суффикс -able в словообразовательной модели глагол + able = прилагательное?

Задание:

Переведите на русский язык.

1. A group of fingerable elements on the touch-screen.
2. Learn 10 steps to a more kissable mouth.
3. Shocking but true-only 0.83% of the Earth's water is drinkable.
4. It's one of few mushroom that is eatable totally raw.
5. The text is specially formatted to be easily readable.
6. They discuss doable actions in water supply, sanitation, and hygiene (WASH) programs.

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