The video tutorial introduces diphthongs, focusing on the 'oi' and 'oy' sounds. It explains how these sounds are formed by combining vowels and provides rules for their usage in words. The tutorial includes examples and a worksheet for practice, highlighting exceptions to the rules. The video concludes with encouragement for viewers to continue learning.

What is the main topic of the video?

• Grammar

• Punctuation

• Diphthongs

• Consonants

What are the two diphthongs discussed in the video?

• AU and AW

• OI and OY

• EI and EY

• AI and AY

What is the general rule for using 'oi' in a word?

• At the end

• At the beginning or middle

• Only in short words

• Only in long words

In the word 'boy', where is the 'oi' sound located?

• Beginning

• Middle

• End

• Not present

Which diphthong is used at the end of the word 'toy'?

• OY

• AU

• OI

• AY

In the word 'coin', where is the 'oi' sound located?

• Not present

• Beginning

• Middle

• End

Which diphthong is used in the middle of the word 'boil'?

• OY

• AY

• OI

• AU

In the word 'oil', where is the 'oi' sound located?

• Not present

• Middle

• End

• Beginning

Which diphthong is used at the end of the word 'joy'?

• OI

• OY

• AU

• AY

What is the exception to the diphthong rule mentioned in the video?

• Boil

• Soil

• Oyster

• Coin