Time to boost your confidence in using grammar. Let's learn about interrogative word or question word. An interrogative word or question word is a function word used to ask a question, such as what, which, when, where, who, whom, whose, why, whether and how. Example: What is your unforgettable experience last year? The word "What" serves as an interrogative word which asks information about the experience. Now, can you identify the missing word?" Learn more about our grammar lessons by visiting

Interrogative sentences - do, does, did questions in English | Simple present & past interrogative