English Grammar: Conjunctions — and, but, or

Topic: Heroes and Heroines • For age: 12 • Kenya 🇰🇪

What is a conjunction?

A conjunction is a connecting word. It joins words, phrases, or sentences. Today we focus on three common conjunctions: and, but, and or.

1. AND — adds information

Use and to join two similar ideas.

Examples with heroes:

  • The heroine planted trees and taught others about the environment. 🦸‍♀️🌳
  • Dedan Kimathi fought for freedom and inspired young people. 🇰🇪

Note: Do NOT use a comma when and joins two verbs with the same subject: "She trained and helped the team."

2. BUT — shows contrast

Use but to show an opposite or different idea.

Examples:

  • He is brave but he sometimes feels scared inside. 🦸‍♂️
  • She wanted to act in the play, but she also had exams the next day.

Tip: If each part before and after but is a full sentence (has its own subject and verb), you can put a comma before but:

"He trained hard, but he lost the race."

3. OR — shows a choice

Use or when you give choices or alternatives.

Examples:

  • Will you study the life of Wangari Maathai or read about a different Kenyan heroine? 📚
  • We can celebrate the heroes now or later at school assembly.

If both choices are full sentences, use a comma before or:

"You can join the team, or you can help with the play."

Comma rule — short and simple

  • Use a comma before and/but/or when they join two full sentences (each has subject + verb): "She trained, and she played well."
  • Do NOT use a comma when joining words, phrases, or verbs that share the same subject: "The hero ran and jumped."
  • Use commas to separate items in a list: "Our heroes are Dedan, Wangari, and others." (The comma before the last "and" is optional.)

Practice — choose the right conjunction and add commas if needed

  1. Mary saved the child ______ she was scared.
  2. We can read about Wangari Maathai ______ watch a film about her life.
  3. The heroine trained hard ______ she did not give up.
  4. He helped the village, ______ he wanted no reward.
  5. The team sang ______ danced at the celebration.

Try to write the full sentence with commas if needed.

Answers (click to reveal)
  1. Mary saved the child, but she was scared. (Use but and a comma because two full clauses.)
  2. We can read about Wangari Maathai or watch a film about her life. (Use or; no comma needed because same subject "we".)
  3. The heroine trained hard and she did not give up. — or — The heroine trained hard, and she did not give up. (Both are possible; when both parts are full sentences, adding a comma before and is correct.)
  4. He helped the village, but he wanted no reward. (Use but with a comma.)
  5. The team sang and danced at the celebration. (Use and; no comma because verbs share the subject "the team".)

Final tips

  • Ask: Do both parts have their own subject and verb? If yes, consider using a comma before the conjunction.
  • Use simple hero examples when practising: they help you remember meaning and use.
  • Read your sentence aloud — a small pause often shows where a comma is needed.

Happy learning! Try writing three sentences about a Kenyan hero or heroine using and, but, and or.


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