Do yeoman's service ( বিশেষ উপকার করা ) Raja Rammohan Roy has done yeoman's service to our country.
By hook or by crook ( যে কোন উপায়ে ) You must do this work by hook or by crook.
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.
Bosom friend ( অন্তরঙ্গ বন্ধু ) Rifat is my bosom friend.
As it were ( যেন ) The sun is, as it were , the lamp of the universe.