Key 13-15
KEY 13:
“ant” to “ance” noun
“ent” to “ence” adjective
List of silent letters
KEY 14:
Adding suffixes with similar sounds: ary; ery; ory;
Cian, tial, cial ; seed; sede; cede
When to choose correct ending: “ious” or” eous”
“uous”/ “us”; able/ible; tient/cient
When to double the last letter when adding suffixes
Keys 15:
Unstressed syllables
The concept of “schwa” - the stressed syllable
When to double last letter of two beat main words
When not to double when adding endings and suffixes