Name _______________________________________

Lesson 17   1 + 1 + 1 words and VAC words

plan planning planned  
star starring starred  
slip slipped slippery  
jog jogging jogger  
grab grabbing grabbed  
stop stopping stopped  
swim swimming swimmer  
ship shipping shipped shipment
sad sadder saddest sadness
dim dimmed dimmer dimly
upset upsetting    
begin beginning beginner  
control controlling controlled  
regret regretting regrettable  
patrol patrolling patrolled  
rebel rebelled rebellion  
forgot forgotten    
forget forgetting   forgetful
equip equipping equipped equipment
commit committing committee commitment


 

TERMS TO KNOW:

A word that has 1 syllable, 1 vowel, and 1 final consonant is called a 1 + 1 + 1 word: set.

A word that has a single vowel in a final accented syllable with one final consonant is called a VAC word: up set'.



The first ten words in the list are 1 + 1 + 1 words. The last ten are VAC words.

1. What happens to the final consonant of these words when a suffix beginning with a vowel is added? _______________________
   
2. What happens when a suffix beginning with a consonant is added?
____________________________________
   
3. In what VAC word are the letters qu treated as a single consonant? _____


Lesson Generalization

Double the final consonant of a 1 + 1 + 1 word or a VAC word before a suffix that begins with a vowel. Do not double the final consonant before a suffix that begins with a consonant.



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