The video tutorial introduces four negative prefixes in English: 'il-', 'ir-', 'im-', and 'in-'. It explains how these prefixes change the meaning of words to their opposites, providing examples for each prefix. The tutorial aims to help learners expand their vocabulary and sound more like native speakers. It concludes with a practice exercise for viewers to apply what they've learned.

What is a prefix?

• A series of letters that change the tense of a word.

• A series of letters that make a word plural.

• A series of letters added to the beginning of a word.

• A series of letters added to the end of a word.

What does the prefix 'il' mean when added to a word?

• It makes the word plural.

• It makes the word positive.

• It makes the word negative.

• It makes the word neutral.

Which of the following words becomes negative with the prefix 'il'?

• Visible

• Possible

• Legal

• Regular

What does the prefix 'ir' mean when added to a word?

• It makes the word positive.

• It makes the word neutral.

• It makes the word negative.

• It makes the word plural.

Which of the following words becomes negative with the prefix 'ir'?

• Mature

• Formal

• Relevant

• Secure

What does the prefix 'im' mean when added to a word?

• It makes the word negative.

• It makes the word positive.

• It makes the word plural.

• It makes the word neutral.

Which of the following words becomes negative with the prefix 'im'?

• Relevant

• Secure

• Possible

• Formal

What does the prefix 'in' mean when added to a word?

• It makes the word positive.

• It makes the word negative.

• It makes the word neutral.

• It makes the word plural.

Which of the following words becomes negative with the prefix 'in'?

• Legal

• Relevant

• Secure

• Formal

Which prefix would you use to make the word 'correct' negative?

• il

• im

• in

• ir