Catch red handed( হাতে নাতে ধরা ) The thief was caught red handed.
In vain( বৃথা ) All his attempts were in vain.
A blessing in disguise( বিপরীতে হিত ; প্রথমে খারাপ হিসেবে মনে হলেও পরবর্তীতে ভালো হয় ) Sam's motorcycle accident was a blessing in disguise because he got enough insurance money.
By chance( দৈবাৎ ) I met him on the way by chance.
A bolt from the blue( সম্পূর্ন অপ্রত্যাশিত ) The news of his father's death came to him as a bolt from the blue.
In a fix( মুশকিলে পতিত ) He is in a fix and does not know what to do.
