Rule Set: Suffixes
Spelling Rule :
When adding a suffix ending to a word ending in the letter 'y'. Whether it's a vowel suffix or a consonant suffix, you change _ _'y' to _ _'i'.
- b
- e
- a
- u
- t
- y
- + ful
- =
- b
- e
- a
- u
- t
- i
- f
- u
- l
- a
- n
- g
- r
- y
- + er
- =
- a
- n
- g
- r
- i
- e
- r
More examples : howtospell.co.uk/y-to-i-spelling-rule
Exception:
If the vowel suffix ending starts with an 'i' such as 'ing'. Then you keep the 'y', so as not to have a double 'ii'.
- d
- r
- y
- + ing
- =
- d
- r
- y
- i
- n
- g
suffixes that start with an "i": -ing, -ish, -ible