Question:
Tony from China writes,
Hi! I am an English learner from China. I want to know the difference between when and while. Thanks!
Tony, China.
Answer:
Dear Tony,
This is a very interesting question, because both words are what grammar experts call "subordinating conjunctions." That means we use them to connect subordinating clauses to the main clause of a sentence. A subordinating clause is a part of a sentence that adds additional information to the main clause. Here is an example:
I read Tony's email whe
