SQL Query

Hi all,
How to query data from the data shown below if status:failed  detected for more than or equal to 2.
Month  Class Subject Status Jan          1A   English  Failed Jan          1B   English  Pass Jan          1C   English  Pass Feb          1A   English  Failed Feb          1B   English  Pass Feb          1C   English  Failed Mar         1A   English  Failed Mar         1B   English  Pass Mar         1C   English  Pass April        1A   English  Pass April        1B   English  Pass April        1C   ...