Common Mistakes : Congratulation
noun
.BAD: Congratulation! You must be feeling very proud .GOOD: Congratulations! You must be feeling very proud
: Congratulations is a plural noun .Many congratulations to you both. I’m sure you’ll be very happy together .Give them our congratulations and say that we’ll be getting in touch soon
.BAD: Congratulations for your splendid examination results .GOOD: Congratulations on your splendid examination results
: (congratulations on (doing ) sth (NOT for .Congratulations on your promotion. You certainly deserve it