The phrase "might have posted" is correct and usable in written English.
It is usually used to express the idea that something could have been done in the past, but wasn't—often to suggest that the outcome could have been different if the action had been taken. For example: "I saw your post on Facebook and thought it might have been useful in the discussion, but you never posted it."
Woods missed four birdie putts from inside 10 feet, substantiating his claim that he might have posted "something really special".
A security researcher first tipped the company off last week to the fact that hackers might have posted its data, Mr. DeHart said.
Whereas once I might have posted a picture with no reference to the bad bits – I decided to swap artifice for admission.
Chen says that if Coco Chanel had been a modern-day perfumier, she might have posted a video about the four imperfect formulations that came before version No5.
So I think I might be back on to do 'Transformers 2'!" As Paramount might have posted on its blog, if it had one: Whew!
Mr. Burke, that secret report stated, might have posted a link on an anarchist blog, "Bombs and Shields," to a news account of the bombing written by Fox News.
Worth noting: The bug didn't go so far as to make the would-be blocked individual your friend (even if they were your friend prior to the block), so anything an affected individual might've posted to a friends-only audience should have remained private.
However, in the absence of Tsix, Xist RNA levels increase considerably in undifferentiated ES cells (Morey et al. 2001; Vigneau et al. 2006), suggesting Tsix might have post-transcriptional effects on Xist expression.
Officials with the inspector general's office of the General Services Administration said Wednesday that they had opened at least seven cases concerning buyers who might not have posted the certification and formaldehyde warnings on trailers they sold.
He might almost have posted a notice above the door of his home in Wakes Colne, near Colchester: "Unexamined received opinion not welcome here". Here, as always, King was a teacher.
At that point, you might as well have posted it on Twitter.
