"how many long" can be a correct and usable part of a sentence in written English.
It is often used in a more colloquial or informal context. Example: "I can't believe how many long hours we spent waiting in line for those concert tickets."
Since many dogs are not licensed, it is not known precisely how many Long Islanders are dog owners.
How many jobs had I been fired from, or walked out on, over the years, how many long stretches of joblessness?
Even an inexperienced eye can gauge how many long months of patience, skill and eyestrain were involved just by examining a single inch.
I am always amazed at how many long limbed posh blonde English girls live and work out here.
It's very difficult and it's not the money, it's the time, the logistics to see all these patients... How many long consultations can you give?
Calculate how many 8' long boards you can get from one sheet and use that to figure out how many sheets you will need.
They were rarely affectionate in public - then again, how many long-term partners are?
It is surprising how many long-bearded, ponytailed men and how many fishnet-gloved, purple-haired girls Unicov hides away during daytime.
How many long-line boats are based in Barnegat? A. About a dozen long-liners now, there used to be about 20 of them in the mid-80's and early 90's.
Still, it will be weeks, if not months, before it is known how many long-term viewers Ms. Couric has lured to the CBS broadcast, which has trailed NBC and ABC in the ratings for more than a decade.
Michael Adams, chief technology officer for Web hosting and e-commerce firm Gestalt Technology, no longer asks his 25 employees to keep an eye on how many long-distance phone calls they make.
