Long time no see! Here is a fresh one for my "See me once" series:
See me once, a pending action is ripe
Say me twice, must I now help you wipe?See me once, used in an auxiliary way
See me twice, my death is still mentioned today
If you are not familiar with my See me once riddles, I recommend you first have a look at the latest riddles in this series and their solutions:
#7, #8, #9, #10, #11, #12