"left flabbergasted" is a correct and usable expression in written English.
You can use it to express shock or surprise at something. For example: When I found out the truth about the scandal, I was left flabbergasted.
Patricia Awori a member of the AEC's secretariat, said that she was left "flabbergasted" by the EU's positioning.
On Monday, he was left "flabbergasted" on being told that the FRC didn't even wait for the official report on HBOS before reaching its conclusion.
On a recent visit to Washington, D.C., I was left flabbergasted merely by the historical maps on display in one of library's public galleries.
The "Argo" director and star was left flabbergasted when he walked away with two Critics Choice awards, including Best Picture, for the political flick, which is a frontrunner in the Golden Globes race.
When Mason left, Wilbur, flabbergasted, did the math.
The west coast left me flabbergasted once again by the magnificence of the scenery.
The Wizards looked like toast from the moment Chris Paul, who hadn't dunked all season, unleashed a lay-up that left everyone flabbergasted.
Abbott told his good friend Greg Sheridan, the recipient of the leak, that this decision had left him "flabbergasted" and "disappointed" because it was "vital for our national self-respect" and "vital for our national security" that Australia get its new submarines by the mid-2020s, whish is what the Abbott government had promised.
Trying to sort out British royal ancestry will likely leave you flabbergasted, but according to The Guardian, the Y chromosomes taken from the king's bones indicate that there was an instance of female infidelity somewhere in his lineage.
This sort of question always leaves me flabbergasted.
QI and Pointless keep chuntering on, with 1,342 QI Facts to Leave You Flabbergasted (Faber) and A Pointless History of the World (Coronet), while Brian Clegg's What Colour Is the Sun? (Icon) bravely keeps up the tradition of fun-filled festive science Q&A books.
