The phrase "articulate somewhat" is correct and usable in written English.
It can be used when you want to express that someone is able to express their thoughts or ideas clearly to a certain extent, but perhaps not fully.
Example: "While he struggled with the complex concepts, he was able to articulate somewhat his main ideas during the discussion."
Alternatives: "express to some degree" or "communicate partially".
The fully clothed Mr. Shatner — on this day, brown suit, blue shirt — did go on to answer the question about what people can expect at his show (doing so, incidentally, in normal, articulate, somewhat pun-prone speech that is not at all like his trademark "Star Trek" delivery).
He is introduced as an articulate, somewhat anxious boy (played in the early scenes by Michael Angarano), living with his rebellious older sister (Zooey Deschanel) and their protective mother, a college professor portrayed with glowing intelligence and scary intensity by Frances McDormand.
Against this backdrop, in the last three months, two newly appointed FTC Commissioners have articulated somewhat diverging views about how the FTC should approach strategic deals involving PE.
As New York mayor Michael Bloomberg articulated somewhat bluntly after the latest massacre: "Maybe it's time that the two people who want to be president of the United States stand up and tell us what they're going to do about [gun control]." From a political standpoint, the inaction isn't surprising, at least from Romney.
The man himself is articulate, thoughtful and somewhat reserved, and he is also by far the most incisive and interesting of the film's talking heads.
The qualitative methodology of the study enabled participants to somewhat articulate this heterogeneity in interviews, but likely they did not describe a complete picture of their relationship contexts.
Schalken turns out to be a late-blooming baseliner with a lot of poise, somewhat more articulate in English than some Yanks.
However, about the time of the Peloponnesian War (431 404 bc), the phalanx became somewhat more articulated.
Trump's argument, somewhat confusingly articulated by his lawyer on Thursday, is that Comey violated the law by "leaking" sensitive material to the press.
The answer is somewhat hard to articulate, but here goes.
He's articulate and knowledgeable — he's somewhat intelligent.
