Punctuation That Changes Your Marks Junior Cycle English

Junior Cycle English · Grammar & Language

Punctuation is not decoration. It is part of how clearly you write, and clear writing scores. An examiner who can follow your meaning the first time reads you generously. An examiner stuck untangling a run-on sentence does not. Here are the marks that matter most, and how to use them.

Why punctuation scores

You are not marked on punctuation as a separate box. You are marked on how clearly and accurately you write, and punctuation is a big part of that. When your sentences start and stop in the right places, your ideas land. When they do not, the examiner has to do the work you should have done. Get the basics right and your writing reads as controlled. That control is what good marks reward.

Full stops and the run-on

A full stop ends a sentence. That sounds obvious, but it is the single most useful mark you have. Every full stop tells the reader one complete thought is finished and another is coming.

The classic error is the run-on: two or more full sentences crammed together with no full stop between them. For example: “The match was over we walked home in the rain.” Two complete thoughts, one missing full stop. The cure is simple. Split them. “The match was over. We walked home in the rain.” If in doubt, ask whether each part could stand alone as its own sentence. If it could, it usually wants its own full stop.

Commas (and the comma splice)

Commas do two main jobs. First, they separate items in a list: “I packed a coat, a book, a sandwich and my keys.” Second, they mark off extra information dropped into the middle of a sentence: “My sister, who plays camogie, broke her wrist.” Lift out the part between the commas and the sentence still works.

Now the warning. Do not use a comma to join two full sentences. That mistake is called a comma splice, and it is one of the most common errors at this level. “It was raining, we stayed inside” is wrong. Both halves are complete sentences, so a comma is too weak to hold them. Fix it with a full stop (“It was raining. We stayed inside.”), or with a joining word (“It was raining, so we stayed inside.”), or with a semicolon, which you will meet below.

Apostrophes: it’s vs its, and possessives

This is the big one. Apostrophes do two jobs, and people muddle them constantly.

It’s vs its

“It’s” with an apostrophe always means “it is” or “it has”. Nothing else. “It’s cold today” means “it is cold today.” “Its” with no apostrophe means belonging to it: “the dog wagged its tail.” Test it every time. If you can swap in “it is” and the sentence still makes sense, use the apostrophe. If you cannot, leave it out.

Possessives

To show something belongs to someone, add an apostrophe. For one owner, add apostrophe then s: “the dog’s lead”, “Sarah’s bag”. For more than one owner where the word already ends in s, put the apostrophe after the s: “the students’ work” means the work of several students. Get this right and your writing instantly looks more careful.

Speech marks

Speech marks (also called quotation marks) show the exact words someone says. There is a clear layout, and examiners notice when you follow it.

The two rules that matter most: start a new line each time a new person speaks, and keep the punctuation inside the speech marks. Look at how this is set out.

“Are you coming to training?” Niamh asked.
“I can’t,” said Tom. “I have to mind my brother.” Sample dialogue layout

Notice the comma and the question mark sit inside the closing speech marks, and Tom’s reply begins on its own new line because he is a new speaker. That spacing alone makes dialogue easy to read.

Colons and semicolons

These two look similar and do different jobs. A colon introduces something: a list, or an explanation of what came before. “I needed three things: a pen, a ruler and nerve.” The colon promises that what follows will deliver on the first part of the sentence.

A semicolon joins two closely linked full sentences without a full word between them. “The rain had stopped; the pitch was still soaked.” Both halves could stand alone, but they belong together, so the semicolon links them. Use it sparingly. One well-placed semicolon looks confident. Five on a page looks like you are showing off.

The mistakes that cost marks

• The comma splice. Two full sentences joined by only a comma. Use a full stop, a joining word, or a semicolon instead.
• It’s vs its. Apostrophe only when you mean “it is” or “it has”. Never for the possessive.
• Missing apostrophes. “The students bag” should be “the student’s bag” or “the students’ bag”. Decide who owns what, then place the apostrophe.
• Messy dialogue. No new line for each speaker, or punctuation drifting outside the speech marks. Lay it out properly and it reads cleanly.
• The run-on. Sentences that never stop. Break them with full stops.

Using This in the Exam

You will not have time to study grammar mid-exam, so the gains come from how you check your work. Build a quick punctuation pass into your last few minutes.

How to use it: When you reread an answer, read it slowly and stop at every full stop. Ask two questions. Does each sentence stand on its own? Have I used a comma where a full stop belongs? Then hunt down every “its” and “it’s” and check each one with the “it is” test. Those two passes catch the errors that quietly drain marks.

In short

Punctuation is how you control meaning on the page. Full stops end the run-on. Commas separate and add, but never join two full sentences on their own. Apostrophes mean “it is” or they show ownership, and nothing in between. Speech marks get a new line per speaker with the punctuation tucked inside. Colons introduce; semicolons link. Get these right and your writing reads as clear and careful, which is exactly what earns the marks.