The subject of oftentimes definition encompasses a wide range of important elements. "Often" and "oftentimes" - English Language & Usage Stack Exchange. Oftentimes is an adverb phrase-turned-word, and is similar to the adverb phrase many times. (The Oxford Dictionaries Online note that oftentimes is archaic or North American.) In your example, then, either word is fine—you could substitute frequently or many times and see that the grammaticality of the sentence is preserved. "oftentimes" - English Language & Usage Stack Exchange. Additionally, “oftentimes” Is “oftentimes” a pleonasm?
It's important to note that, my current understanding is that “often” denotes frequent occurrence. If “often” communicates frequent occurrence, then what need is there to ... phrases - is it correct to use 'often a times'? - English Language ....
Another key aspect involves, does the phrase "often a times" exist? If so, what is the correct way to use it? Would the following sentence be correct?

I have seen him loafing about in the streets often a times. "Sometimes", "oftentimes" — is there a -times word for "very rarely"?. If something happens sometimes, it happens occasionally.
Is there an equivalent word for something happening very rarely? Is "Jack of all trades, master of none" really just a part of a longer .... The original complete epithet reads: " Jack-of-all-trades, master of none, though oftentimes better than master of one." Interestingly enough, the world is changing to a more complicated, more integrated place. From another angle, the latter version of the saying, in its totality, puts the emphasis back on the benefit of being good at many things.

Which work of Shakespeare "oftentimes better than a master of one .... A jack of all trades is a master of none, but oftentimes better than a master of one is apparently accredited to William Shakespeare. Just to clarify - I mean the FULL quote, not just 'Jack of all ...
When did it become fashionable to drop t's in certain words?. Ofttimes and oftentimes both carry that archaic flavor but are still in active use. After the -en suffix was added to ¬oft, the \t\ fell away in pronunciation, but remained in the spelling.

Is "oftener" obsolete? - English Language & Usage Stack Exchange. However, with regard to oftentimes, the extended form of ofttimes, the OED notes that the comparative and superlative forms oftener times and oftenest times are now obsolete, last having been seen before the Mayflower cross the Atlantic. How often is "more often than not"?
A person, supposedly a native speaker of English, assured me that I would say "often" means roughly 50-60% of the time, whereas "more often than not" means 75-95% of the time, and is closer in me...


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