Thing that have passed are past. Other adjectives including passing ("a passing phase") and, in some cases, passed (as in "quickly passed plates").
please pass the carrots
heat can pass through a conductor.
The word "pass" can be used in various ways in a sentence. For example: I need to pass the salt. They will pass by the store on their way home. She had to take a test in order to pass the class.
Your nerves are transitory, they will pass as soon as your speak your opening sentence.
Please can you pass the water dad
The President will veto the bill and pass it to congress.
Civilians required a pass beyond the checkpoint.
She neede to pass the survival course to survive!
The maiden failed to pass the document
I will just have to take a pass on your reenlistment offer, sir.
To pass the class, I require a B+ on the final.
I need to keep up with my studies to pass the exam.