verb / noun
flunk
FLUNK/flʌŋk/
Failure to meet the passing standard in an exam or course.
The student flunks the exam marked with an F.

Etymology
Originally college slang for backing out or giving up through fear or incompetence, it came to mean academic failure and assigning a failing mark. Its deeper origin is obscure.
In context
you can flunk it I know somebody flunked this French test about three times before they finally passed it