으시/시 = Lets get formal
This is an important grammar point. While speaking Korean, its important to use this particle (formal speech) when speaking to older people or people in higher status. There is no translation, but basically one could say that this particle mean “I respect you“. This is a very important part of Korean culture.
Example of the grammar particle “시”
안녕하세요? = Hello, how do you do?
가십니까? = Are you going?
저는 이 일을 하셨어요. = I did that work