"I was reading the dictionary. I thought
it was a poem about everything."
                     --Steven Wright

Appropriate Preposition:

  • Favourable for ( অনুকূল (কোনকিছু) ) This situation is favorable to me for doing this.
  • Brood on (over) ( মন খারাপ করা ) Do not brood over your misfortune.
  • in favour of ( পক্ষে ) He spoke in favour of his friend.
  • Plead with ( ওকালতি করা (ব্যক্তি) ) I pleaded with him for justice.
  • Worthy of ( যোগ্য ) He is worthy of our praise.
  • Officiate for ( পরিবর্তে কাজ করা (ব্যক্তি) ) He officiated for me in that post.

Idioms:

  • All at once ( হঠাৎ ) All at once a tiger came out of the forest.
  • A rainy day ( দুর্দিন ) Everybody should save something for rainy day.
  • till the cows come home ( অনেক সময় ধরে ) I could play outside till the cows come home
  • In force ( বলবৎ ) This law is in force now.
  • By and by ( শীঘ্র ) He will come here by and by.
  • under the weather ( ভাল না ; অসুস্থ ) I've been feeling under the weather