Yesterday I went to the drugstore where I haven't been for a long time, but it was closed, I mean, it was out of business. In this case, which sentence should I use? I'm saying to someone at that moment, 1) It's closed. 2) It's been closed. 3)It closed. 4)It closed down. I'd like to put the meaning that this is permanent.
The shop is not currently open for business
It's been closed.
At some point in the past, the shop wasn't open for business (sounds awkward, you would say "it was closed" instead). Or: Someone has closed the shop for the day (still sounds awkward, you would say "it's closed")
The shop has closed down forever
It closed down
Same as above, the shop has closed down forever