The phrase "always failing" is correct and usable in written English.
It can be used to describe a consistent pattern of failure in various contexts, such as personal experiences, projects, or attempts at achieving goals.
Example: "Despite his best efforts, he felt like he was always failing to meet his own expectations."
Alternatives: "constantly failing" or "perpetually unsuccessful".
Particularly those kids who are always failing; there's no place to fail here.
But you could see the characters struggle, always failing.
Detectives solve crimes but they are also trying (and always failing) to solve themselves.
"They were always failing the government guidelines, and always getting a break".
They asked him why he kept talking like an accountant or an economist, always failing to see "the moral dimension".
But he was spoilt, and he didn't study, and was always failing, while I was good in school.
I'm fond of that kind of rain, and pity it, in my sentimental way: it seems to be trying so hard to say something and always just failing".
That's why, until we've got as many Mulans and (un-whitewashed) Katniss Everdeens as we do Frodos, Batmans, Kung Fu Pandas, Rangos, Shreks, Woodys – I could go on here … to infinity and beyond – even the most liberated of princesses will always be failing girls.
I've always investigated the reasons for my failures much more intensely than my successes, and failing always drives me to try harder next time.
In 1951, as a young "permanent substitute" teacher in a New York City public school, I asked some veteran teachers how their classes always had high test averages; my class averages, with similar students, were always in the failing range.
The phenomenon known as too big to fail is based on the notion that government officials will always rescue a failing financial company when it believes the failure would cause financial chaos.
