Prepositions describe the relationship of words in a sentence. We use prepositions of location such as 'in', 'at' and 'on' to show the position of objects in the sentence. We use 'at' for specific ...

One aspect of the English language that is hard for non-native speakers of English is prepositions. They tend to use prepositions either incorrectly or redundantly. Recently, a friend requested me to ...

About two years ago, I conducted an informal survey among those whose proficiency in English is fairly good to find out which aspect of English they found difficult to master. Those who took part in ...

AN English teacher in Iran, Farhad H., recently sent me e-mail asking this very interesting question about preposition usage: “I often have difficulty when it comes to the difference between the ...