The phrase "admittedly sometimes" is correct and usable in written English.
It can be used when acknowledging a fact or situation that may not be favorable or is often true, while also indicating that it occurs occasionally.
Example: "Admittedly sometimes, I struggle to stay focused during long meetings."
Alternatives: "I must admit that at times" or "It is true that occasionally."
He denies that he still works in intelligence, but says he is a "communications consultant", admittedly "sometimes for politicians".
Lockstep suburban conformism enforced with a fascist rigor is the ugly (but admittedly sometimes funny) joke driving this family comedy.
It is the core issue that the AIDS community has been struggling with for three decades, admittedly sometimes more successfully than others.
What's especially compelling about Taylor's, admittedly sometimes long-winded, book is his charge that cracks in Christianity provided places where secularism's weeds flourished.
A long time ago I made a choice in my life (admittedly sometimes it gets me in trouble), to always strive to do the right thing though the heavens may fall.
Admittedly, sometimes when I traipse into the former smokehouse on my property where I'm boarding the drone, there's a tiny tang of Lady Chatterley or "Mandingo" about the whole thing, but that's just lizardy, collective-unconscious stuff.
Admittedly they sometimes forget this: Kushner failed to mention their multimillion dollar collection in required financial disclosures, despite Ivanka regularly posting pictures of their haul on Instagram.
Admittedly, this sometimes got him into hot water, like when he and his students figured out a clever way to make the active ingredient of marijuana – a heterocycle called a cannabinoid, or THC.
Grand Theft Auto V is a grand guignol fantasy – an admittedly nasty, sometimes infantile parody of modern cultural life, constructed around an astonishing sandbox city and an amoral crime narrative.
Inspired, admittedly in sometimes rather vague ways, by the improving European journeys taken by 18th-century gentlemen, on paper, the Grand Tour sounds like just another hollow tourist board initiative.
But one of the underlying goals of geriatrics is to differentiate between "normal" aging changes and those brought about by disease — admittedly, a sometimes difficult task, as the prevalence of many diseases increases as we get older and what is normal is not always clear.
