it is run
Running doesn't have a past participle. Running is the present participle of run. Ran is the past participle of run
The present participle of "run" is "running". English does not have future participles for any verb. There are various expedients when translating into English from foreign languages that do have a specific grammatical form for future participles, but these should probably be sought under translations from the language in question.
Ran is the past tense of run. Running is the present participle.
"Will be run": the verb "run" is its own past participle.
Being is the present participle. The past participle is been.
Getting is the present participle of get.
The present participle is doing.
infinitive: run past: ran past participle: run
Past tense - ran (simple) & run (past participle) Present tense - run/runs/running. Future tense - will run.
Presenting is the present participle of present.
Presenting is the present participle of present.
The present participle is choosing.