The phrase "previously intern" is grammatically correct and can be used in written English.
It refers to someone who has completed an internship in the past. Example: "Jane, our previously interned marketing assistant, has now been promoted to a full-time position within the company."
He joined the Guardian in 2015 as a researcher for The Counted and previously interned for the Melissa Harris-Perry Shon on MSNBC.
At the end of the course, I was offered a job at New York magazine, where I had previously interned while I was in college.
Mr. Shpayher, who previously interned on Capitol Hill, noticed a general trend that members representing rural or poorer districts had less presence online.
Brett Ziegler is an assistant photo editor and photographer for U.S. News and World Report in Washington, D.C. Born in California and a graduate of the Brooks Institute of Photography, he previously interned for the Ventura County Star.
Rebecca graduated from Northwestern University with a focus on journalism, and she previously interned with Bleacher Report.
Underwood previously interned at Apple and 3M, and has done stints at Deloitte, Intel, Travelocity, and WeatherBill.
He previously interned at Microsoft and later worked on product at Google before joining Facebook in 2007.
Karpathy also previously interned at Google's DeepMind, focusing on deep learning, and attended both the University of British Columbia and the University of Toronto before that.
VisualGraph employee David Liu was in the middle of his computer science master's degree at Stanford when he joined the startup, and had previously interned at Google, Palantir, and Facebook.
She previously interned at Galore.
Full disclosure: Lizzie Schiffman previously interned at WBEZ.
