Understanding Suffixes and the 1:1:1 Rule

The video tutorial explains how suffixes can be added to base words, sometimes without changing the base word. It introduces the 1:1:1 rule, which states that if a one-syllable word ends with one vowel followed by one consonant, the final consonant should be doubled before adding suffixes like 'ed' or 'ing'. Examples such as 'run-running' and 'trip-tripped' illustrate this rule. The tutorial also covers cases where doubling is not needed, such as words with two vowels before the final consonant or words with more than one syllable.

Which of the following words can have a suffix added without changing the base word?

• Trip

• Rest

• Jog

• Run

What is the 1:1:1 rule used for?

• Identifying the number of syllables in a word

• Choosing the correct suffix

• Deciding when to double the final consonant

• Determining when to add 's' to a word

Which word follows the 1:1:1 rule when adding 'ing'?

• Run

• Open

• Dream

• Rest

Why is the final consonant not doubled in the word 'dream' when adding a suffix?

• It has two vowels before the consonant

• It has more than one syllable

• It has two consonants at the end

• It ends with a vowel

Which of the following words does not require doubling the final consonant before adding 'ed'?

• Run

• Rest

• Jog

• Trip

What is the reason for not doubling the final consonant in 'open'?

• It has more than one syllable

• It ends with two consonants

• It ends with two vowels

• It is an irregular verb