Rule 18 refers to the phonogram 'ay'. We use 'ay' 2 letter at the end of a base word.
For example: play, way, re pay.
Watch the tutorial videos below to see how the Spelling Tools, Spelling Rule 18 and Reading Tools are used to spell challenging words.
Special Note:
Not all words will follow the spelling rule. These are called exceptions. If 90% or more words follow this rule then this is still a great tool to help become a proficient speller. Language experience will deal with the rest.