This lesson helps you practise three punctuation marks that appear constantly in everyday English: full stops, commas and question marks.
You will decide where sentences end, identify direct questions, add commas where sentence structure needs them and correct common punctuation mistakes.
Goal: choose full stops, commas and question marks based on the meaning and structure of a sentence.
Before you start
Read A Clear Guide to English Punctuation before completing this lesson.
You may use paper or a private note for the practice activities.
Remember the three marks
- Full stop: normally ends a statement.
- Comma: separates parts of a sentence when the structure needs it.
- Question mark: normally ends a direct question.
The important skill is not simply recognizing the marks. You need to decide why each mark belongs in a sentence.
Step 1: Find where the sentence ends
Read this:
The lesson begins at ten
This is a statement, so it needs a full stop.
The lesson begins at ten.
Now look at:
Where does the lesson begin
This is a direct question, so it needs a question mark.
Where does the lesson begin?
Step 2: Decide whether the sentence is a statement or a direct question
Do not choose punctuation only because you see a question word.
Compare:
Where is the library?
This directly asks a question.
Now compare:
She asked where the library was.
This reports what someone asked. The whole sentence is a statement, so it ends with a full stop.
Step 3: Use commas in a list
Commas can separate similar items.
We packed water, fruit, sandwiches and towels.
The commas help the reader see the separate items.
Do not place commas between every pair of words. Use them because the items belong to a list.
Step 4: Use a comma after an introductory part
An introductory word, phrase or clause can be separated from the main clause with a comma.
After lunch, we returned to class.
If it rains, we will stay inside.
First, write your name at the top of the page.
The comma helps the reader see where the introduction ends and the main part begins.
Step 5: Use commas when speaking directly to someone
When a sentence directly addresses a person, commas can separate the person's name.
Maya, please bring your notebook.
Thank you, Daniel.
The comma shows that the name identifies the person being spoken to.
Step 6: Do not join two complete sentences with only a comma
Look at:
The rain stopped, we went outside.
Both parts can work as complete sentences.
A comma by itself should not join them in this way.
You can write:
The rain stopped. We went outside.
Or:
The rain stopped, so we went outside.
The second version includes a joining word that explains the relationship.
Practice round 1: Full stop or question mark?
Add the correct ending mark.
- What time does school finish
- My brother plays football
- Did you bring your notebook
- The bus arrives at seven
- Where did you find the key
- We finished the activity
Answers
- What time does school finish?
- My brother plays football.
- Did you bring your notebook?
- The bus arrives at seven.
- Where did you find the key?
- We finished the activity.
Practice round 2: Direct or indirect question?
Choose a full stop or question mark.
Sentence 1
Why is the door open
This is a direct question.
Answer
Why is the door open?
Sentence 2
He asked why the door was open
This reports a question.
Answer
He asked why the door was open.
Sentence 3
Can you help me with this activity
Answer
Can you help me with this activity?
Sentence 4
She wanted to know whether I needed help
Answer
She wanted to know whether I needed help.
Practice round 3: Add commas to lists
Add commas where needed.
Sentence 1
We bought rice vegetables fruit and milk.
Suggested answer
We bought rice, vegetables, fruit and milk.
Sentence 2
Please bring a notebook pencil ruler and eraser.
Suggested answer
Please bring a notebook, pencil, ruler and eraser.
Sentence 3
The flag is red blue white and green.
Suggested answer
The flag is red, blue, white and green.
Practice round 4: Add an introductory comma
Add punctuation where needed.
Sentence 1
After breakfast I packed my school bag.
Answer
After breakfast, I packed my school bag.
Sentence 2
If the weather improves we will play outside.
Answer
If the weather improves, we will play outside.
Sentence 3
First check that you have answered every question.
Answer
First, check that you have answered every question.
Practice round 5: Add the comma for direct address
Sentence 1
Amira please close the window.
Answer
Amira, please close the window.
Sentence 2
Thank you Ravi.
Answer
Thank you, Ravi.
Practice round 6: Repair the comma mistake
Each sentence incorrectly joins two complete sentences with only a comma.
Sentence 1
The bell rang, the students left the room.
Possible correction
The bell rang. The students left the room.
Sentence 2
I was tired, I finished the activity.
Possible correction
I was tired, but I finished the activity.
Sentence 3
The bus was late, we waited inside.
Possible correction
The bus was late, so we waited inside.
Activity: Repair the message
This message is missing several punctuation marks.
Hi Maya are you coming to the library after school I need to return two books a dictionary and a science book if you are coming please meet me at the front entrance
Try to punctuate the message before checking the suggested version.
Suggested version
Hi Maya, are you coming to the library after school? I need to return two books, a dictionary and a science book. If you are coming, please meet me at the front entrance.
More than one well written version may be possible. The important question is whether each mark has a clear job.
Activity: Explain your punctuation
Read this sentence:
Before dinner, I finished my homework, packed my school bag and cleaned my desk.
Why are the commas used?
Suggested explanation
The first comma separates the introductory phrase Before dinner from the main clause.
The second comma separates items in the series of actions.
Activity: Write your own examples
Write:
- One statement ending with a full stop.
- One direct question ending with a question mark.
- One sentence containing a list with commas.
- One sentence beginning with an introductory phrase followed by a comma.
- One sentence directly addressing another person with a comma.
Then explain why you used each punctuation mark.
How to check a full stop
Ask:
- Is this a statement?
- Has the complete sentence ended?
- Does another sentence begin after it?
If the sentence is a direct question, a question mark may be needed instead.
How to check a question mark
Ask:
- Is the sentence directly asking something?
- Is it a request written as a question?
- Or is the sentence only reporting what someone asked?
Direct questions normally need question marks. Indirect questions normally use the punctuation appropriate for a statement.
How to check a comma
Do not add a comma only because you hear a pause.
Ask what the comma is doing.
Is it:
- separating items in a list?
- separating an introductory part?
- separating the name of someone being addressed?
- helping connect complete clauses with a suitable joining word?
If you cannot explain the comma's job, check the sentence again.
Challenge activity
Add punctuation to these sentences.
- After the lesson we walked to the library
- Do you know where my pencil is
- She asked where my pencil was
- We need paper glue scissors and coloured pencils
- Daniel can you help me carry these books
- The rain became heavier we returned inside
Suggested answers
- After the lesson, we walked to the library.
- Do you know where my pencil is?
- She asked where my pencil was.
- We need paper, glue, scissors and coloured pencils.
- Daniel, can you help me carry these books?
- The rain became heavier. We returned inside.
Common mistakes to avoid
- Leaving a sentence without an ending mark.
- Using a question mark after every sentence containing a question word.
- Using commas only because you hear a pause.
- Joining two complete sentences with only a comma.
- Forgetting commas between items in a list.
- Forgetting the comma when directly addressing someone.
- Adding unnecessary commas that interrupt the sentence.
Self check
- What mark normally ends a statement?
- What mark normally ends a direct question?
- Does an indirect question automatically need a question mark?
- Name two jobs a comma can do.
- Can a comma by itself normally join two complete sentences?
Suggested answers
- A full stop.
- A question mark.
- No. An indirect question is often part of a statement.
- For example, separating list items or separating an introductory part from the main clause.
- No. Use another suitable sentence structure, such as separate sentences or an appropriate joining word.
Lesson summary
Use full stops to show where statements end.
Use question marks for direct questions and question shaped requests.
Use commas when sentence structure requires separation, such as in lists, after many introductory parts and when directly addressing someone.
Do not choose punctuation only by listening for pauses. Look at what the sentence means and how its parts fit together.
Continue learning
Review A Clear Guide to English Punctuation for the complete beginner punctuation guide.
Review The Basic Parts of an English Sentence if you want more practice understanding sentence structure.