Re: responsibility vs life vs time (countability)

Originally Posted by
Alexey86
The origin of life on Earth is unknown. (OK)
The origin of a life on Earth is unknown. (Not OK)
It's possible to know the origin of one life. My life originated at Lutheran Hospital in New York City. It's impossible to know the exact origin of life in general.
We had a good time. (OK)
We had good time. (Not OK)
You're referring to exactly one good time. That's countable. You could also have some good times. Those are also countable.
I feel a responsibility to my ancestors when I play. (OK)
I feel responsibility to my ancestors when I play. (OK)
It depends on whether you're thinking of one particular responsibility (maybe you made a promise at your grandmother's deathbed) or a general sense of responsibility, an overall sense of duty to your family.
Why can responsibility be used both countably and uncountably in the same context, while time and life can't?
Those weren't the same contexts.
This might be a good question to return to in a few years.
I'm not a teacher. I speak American English. I've tutored writing at the University of Southern Maine and have done a good deal of copy editing and writing, occasionally for publication.