Periods and Capitalization Worksheet | Punctuation Worksheets - Free Printable

Let’s look at the paragraph that needs fixing:

> we went to the library yesterday there were many good books i picked a book about dogs my sister liked the book about stars we stayed for a long time we read our books when we got home

This is one big run-on sentence. We need to break it into separate sentences by adding periods and capital letters at the start of each new sentence.

Step 1: Find where each idea ends.
- “we went to the library yesterday” → This is one complete thought.
- “there were many good books” → Another complete thought.
- “i picked a book about dogs” → Another one.
- “my sister liked the book about stars” → Another.
- “we stayed for a long time” → Another.
- “we read our books when we got home” → Last one.

Step 2: Add a period at the end of each sentence, and capitalize the first letter of each new sentence.

Also, remember: “I” (when talking about yourself) should always be capitalized — even in the middle of a sentence.

So let’s fix it:

Original:
we went to the library yesterday there were many good books i picked a book about dogs my sister liked the book about stars we stayed for a long time we read our books when we got home

Fixed version:

We went to the library yesterday. There were many good books. I picked a book about dogs. My sister liked the book about stars. We stayed for a long time. We read our books when we got home.

Check:
✔ Each sentence starts with a capital letter.
✔ Each sentence ends with a period.
✔ “I” is capitalized correctly.
✔ All ideas are now separated properly.

Final Answer:
We went to the library yesterday. There were many good books. I picked a book about dogs. My sister liked the book about stars. We stayed for a long time. We read our books when we got home.