Today is a perfectly fine day to end one's life.
It's been perfectly fine right where it is, for months.
I had a couple of calls with bad sound quality, but made several more that were perfectly fine.
Most are perfectly fine, but there's a reason why this one is always filled.
And at this point in time, I feel perfectly fine.
Get over yourself, the kids are perfectly fine without you.
The performances are perfectly fine; no one is asked to do something new.
Most people feel perfectly fine, until they very quickly don't.
I am perfectly fine and in no need of assistance.
"It's perfectly fine to get together with some friends and give the couple one very good thing."