The sentence "I completely failed" is correct and can be used in written English.
For example, you might use this sentence in a reflective essay, where you are discussing a time when you didn't meet an expectation. For example: "When I took the math test, I was confident I would do well; however, when I got my results back, I realized I had completely failed."
There was a "hidden words" round whose rationale I completely failed to catch.
"I completely failed to see the worst case, that you might miss the humour and reasonably interpret it as an insult.
I completely failed to spot that TREE and PERFORATE were possible (though in my view slightly inferior) alternatives to TWEE and PERSONATE and had no hesitation in accepting both.
Throughout my career, and long before it, journals emphasized that new papers have to publish original results; I completely failed to replicate a particular study a few years ago, but at the time didn't bother to submit it to a journal because I knew few people would be interested.
And then I completely failed to be offended by the sight of Angus's shorts (though Mrs Young really ought to have a discreet word), or the torpedo-breasted 30ft inflatable called Rosie (song: "Whole Lotta Rosie") straddling a steam engine (song: "Rock N Roll Train". Fabulous, no?!).
Read the interview here Although I was an early Jamie T devotee, one thing I completely failed to pick up on as a teenage indie enthusiast was the way he wove the topic of anxiety into his music (you'd think the name of his debut, Panic Prevention, might have been a clue).
I completely fail to spot the fact that I've been sitting next to two supermodels (Petra Nemcova and Karolina Kurkova).
'I completely fail to understand a culture which provides state funding if you lose a finger, but not if you are deprived of your reputation.
That's why I completely fail to comprehend how the exchange of vows between a loving couple--be it a man and a woman or two men or two women--changes anything of importance in my life.
I completely fail to understand why further sanctions have not been taken against Mr Pasty in order to prevent this kind of development in future.
In any case, if I've completely failed at making you reconsider bum sex, I guess make sure you give her the attention she needs.
