The phrase "you also failed" is correct and usable in written English.
It can be used to point out that someone has not succeeded in a task or situation, often in a context where others have also failed.
Example: "While reviewing the project outcomes, I noticed that you also failed to meet the deadline."
Alternatives: "you too did not succeed" or "you have also not succeeded."
Chances are if you played it, you also failed to save humanity.
You also failed to recognize the Dreamcast's ability to anti-alias, a feature that the PS2 does not have.
You also failed to turn up to a gig at the University of Warwick claiming you'd been in a car crash, but later revealed you were "tired".
You also failed to report the interest on the account annually, and you failed to file an FBAR.
You also failed to mention that it was Harman who was briefed on the Bush administration's use of torture, only to shirk her responsibility to denounce torture.
You also fail to notice that your experience gives you justification to believe your friend got a haircut.
Not only do you fail your employees, your customers, and yourself, but you also fail your investors partners who helped you bring your idea to life".].
You may fail to hear certain parts of the racing event, such as the jockey's glance back after crossing the wire, but you also fail to see parts of the race, such as the misstep of the horse in second place.
You have also failed to point out that through cuts to Medicare and Social Security's earned benefits you would be making our children and grandchildren pay for a deficit created by the same irresponsible people who now want our youth to pick up the tab.
You have also failed to understand the future-tense myopia -- the incessant, agitated attention paid to the becoming Self -- that fills the days and more vividly the nights of New York's restless young, and makes the city the place it is.
I attempted to use self-help books to find love, which (you guessed it!) also failed miserably.
