The phrase 'the most often' is correct and usable in written English. This phrase is used to compare one thing to another and to indicate which one appears more frequently, as in the example sentence: "I find myself eating pizza the most often.".
The most often cited excuse?
Ah, the most often asked question.
TV is the most often touted target.
Here are the four names mentioned the most often.
The most often-cited vice-presidential candidates are above.
Do the most-often used words match your concise writing?
For the most part, though, Google kept the most-often-used keys at a regular size.
Awesome tool! I started using it one year ago and I never had to look for another app
Ha Thuy Vy
MA of Applied Linguistic, Maquarie University, Australia