English Refresher

Grammar Foundations

Every sentence has a purpose.

A sentence can state something, ask something, command something, or exclaim something — and its ending mark gives the first clue. Meet the four sentence types, then learn to tell them apart at a glance.

Four types, one clue each

The mark is a clue — not the whole story

A sentence can state something, ask something, command something, or exclaim something. The ending mark is your first signal, but an imperative sentence can borrow either a period or an exclamation point — so the sentence’s job is what really tells the story.

Two common rules

It gives information or states a fact — and always ends with a period.

It is the most common sentence type in everyday writing.

Examples

The sun rises in the east.

She loves to read books.

We will meet at the park.

Two common rules

It requests information, and always ends with a question mark.

It often starts with a question word (what, where, who) or an auxiliary/modal verb.

Examples

What time is it?

Where do you live?

Have you finished your homework?

Two common rules

The subject "you" is implied, even though it is rarely stated.

It can end with a period or an exclamation point, depending on urgency.

Examples

Close the door.

Please pass the salt.

Don’t touch that! (urgent, so it borrows the exclamation point)

Two common rules

It conveys excitement, surprise, anger, or joy, and always ends with an exclamation point.

It often starts with "What" or "How."

Examples

What a beautiful day!

I can’t believe we won!

Watch out!

At a glance
TypeIts jobEnding mark
DeclarativeStates a fact or opinionPeriod
InterrogativeAsks a questionQuestion mark
ImperativeGives a command or requestPeriod or exclamation point
ExclamatoryShows strong emotionExclamation point
Self-check

Name the sentence type

Ten quick questions — decide whether each sentence is declarative, interrogative, imperative, or exclamatory. You get instant scoring and a short explanation for every answer.

Your score
0 / 10
Answer a question to begin.

The mark is a clue, not the whole story

A period, question mark, or exclamation point is your first signal, but a sentence’s real type comes from its job — stating, asking, commanding, or exclaiming. Learn the four types, and don’t let a borrowed punctuation mark fool you.