The phrase "form filled in" is correct and usable in written English.
It can be used when referring to a form that has been completed with the necessary information.
Example: "Please ensure that the form filled in is submitted by the deadline."
Alternatives: "completed form" or "filled-out form".
"We would ask two questions when we got an application – was the form filled in correctly?
Hotel staff also showed a check-in form filled in by the man, identifying himself as James Brandon, 23.
Information about the administration of the test was collected via a specially designed form filled in by the supervising examiner.
At the exit is a consent form, filled in by an anonymous donor – a reminder that these are not plastic mannequins, but once living people.
Accompanied by a phrenological chart and register of George Gissing, 1870 Oct and a printed form filled in by Professor Blackburne.
The quality is measured indeed, by the definition of some subjective criteria that are collected through a question form filled in by the consumers.
This homework includes reading informative hand-outs, challenging concerns about falling on pre-structured forms, filling in home safety checklists and filling in personal action planners.
That is an almost inevitable delay if human cadavers are employed, since permission must be sought and forms filled in.
What was constant from project to project was a style of labor-intensive draftsmanship based on bold forms filled in with dense patterns of stippling and hatchwork.
She was poring over a thick stack of survey forms filled in by passengers who had been asked to evaluate the experiment.
Each treatment sessions will be registered by using standard forms filled in by the therapist.
