Suffixes (age 9+)
Spell words with Latin and French suffix patterns: endings sounding like /ʃəs/ spelt -cious or -tious (e.g., precious, cautious), /ʃəl/ spelt -cial or -tial (e.g., official, essential), and words ending in -ant/-ance/-ancy vs -ent/-ence/-ency (e.g., observant/observance, confident/confidence)
What a learner can do afterwards
- Apply the pattern that -cious follows a vowel (spacious, gracious) while -tious follows a consonant (cautious, ambitious), noting common exceptions like anxious
- Choose between -cial (usually after a vowel: special, official) and -tial (usually after a consonant: essential, partial) when spelling words with the /ʃəl/ ending
- Select -ant/-ance or -ent/-ence by checking whether the root ends in a hard c or g sound (-ant: significant) or a soft c or g sound (-ent: innocent), and by applying word-family strategies
The lesson
You already know how to add endings like -ing and -er to words. Now you will learn trickier endings that sound the same but are spelled in different ways, like -cious, -tious, -cial, and -tial.
The ending that sounds like "shul" works the same way. After a vowel sound, write -cial, like in official and special. After a consonant sound, write -tial, like in essential and partial.
Look at essential. Say it slowly: es-sen. The sound right before the ending is a consonant sound, so essential takes -tial, not -cial.
For -ant, -ance, -ancy or -ent, -ence, -ency words, listen to the c or g in the root. A hard c or g sound usually pairs with -ant, like significant. A soft c or g sound usually pairs with -ent, like innocent. If you are stuck, think of a related word in the same family, such as confident and confidence.
Listen to the sound before the ending: vowels usually take -cious or -cial, consonants usually take -tious or -tial, and word families help you pick -ant or -ent.
Watch it
Where it sits
Learn first
This opens up
Nothing builds on it yet.
8 questions wait behind this lesson, each with its answer explained. Every answer feeds the sky: stars light as they are learned, and dim when it is time to come back.