The Interrogative Sentence

What Exactly Is It?

An interrogative sentence asks a question, and it always ends with a question mark (? <--- one of these things).

Where are the brownies?

Did you buy eggs today?

Have you brushed your teeth yet?

The subject of questions can be a little tricky to find because it typically comes after the verb or between parts of the verb phrase.

Finding the Subject of An Interrogative Sentence

The good news is that you can rewrite questions in order to make the subjects easy to find! Yay!

How are you going to do this? You will change the question into a statement, and then the subject will be staring you in the face.



The subjects are underlined.
Is your house ready for visitors?Your house is ready for visitors.
Have you brushed your teeth today?You have brushed your teeth today.
Is this your jacket?This is your jacket.

Strange But True

Sometimes questions sound funny when we turn them into statements.

This is particularly true for questions that start with who, what, where, when, why and how.

Sometimes the words who or what are the subjects.

Check it out.



The subjects are underlined.
Where is your house?Your house is where.
When did you brush your teeth?You did brush your teeth when.
How do I zip your jacket?I do zip your jacket how.
Who is cooking the brownies?Who is cooking the brownies.
What was your name?What was your name.

Diagramming Questions

Sentence diagrams are a way for us to SHOW how the words in sentences are related.

We show these relationships without using any punctuation. Because of this, you will not see the question mark in a diagram of a question!

All sentences must contain a subject and a verb.

Check out the diagrams below. On the left, you'll see a basic diagram of a subject and a verb.

On the right, you'll see a sentence diagram for the question below.

Have you been cooking?

If you'd like to learn more about the grammar of questions, check out that link!

Check out more information about sentence diagramming. It's fun!

If you want to teach or learn grammar the easy way, then follow a step-by-step program that clearly lays everything out for you and allows you to move at your own pace. The Get Smart program is presented in a logical sequence, so it's not an overwhelming mishmash of information. Before you know it, you'll be a grammar and sentence diagramming pro!

The whole program is online, so you have instant access to these lessons and videos. It's easy and fun. You can get it at
Grammar Revolution Get Smart Program
Keep learning and have fun!

Elizabeth O'Brien is the creator of the Grammar Revolution step-by-step grammar and sentence diagramming programs. Her programs are guaranteed not only to teach you grammar, but also to give you more confidence in your communication skills.

To get your free Parts of Speech guide and receive Elizabeth's bi-weekly articles on improving your grammar and having fun with sentence diagramming, enter your email address and name below right now.

E-mail Address
First Name

Don't worry — your e-mail address is totally secure.
I promise to use it only to send you Diagram It.

Understand the Interrogative Sentence? Learn About Other Sentence Types

Back to Sentence Diagramming Index

Back to English Grammar Home Page