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The F & S Illusions /f/ & /s/
This route covers 2 sounds with 8 grapheme patterns and 1079 example words.
f /f/ initial or medial
Common Words
Intermediate
Advanced
ff /f/ medial or final (after a short vowel)
Common Words
Intermediate
Advanced
ph /f/ Greek origin (various positions)
Common Words
Intermediate
Advanced
gh /f/ final
Common Words
Intermediate
Advanced
s /s/ initial or final
Common Words
Intermediate
Advanced
ss /s/ medial or final (after a short vowel)
Common Words
Intermediate
Advanced
c /s/ before e, i, or y
Common Words
Intermediate
Advanced
sc /s/ initial or medial (before e or i)
Common Words
Intermediate
Advanced