Three letter rule poets such as John Milton alternated between short and long forms for function words, depending on whether they occurred on or off the meter. For instance: While many function words have more than two letters ("and", "she", "were", "therefore", etc.), the exceptions to the rule are rather two-letter content words. Only a few of these occur commonly in most texts: the words "go" (which also has a functional usage in the idiom "going to do something"), "ox" and, especially in American texts, "ax". English grammar is relatively flexible about converting words of one class to another, allowing verbal uses such
Word polygon Word polygon A word polygon is a word puzzle where the solver is presented with a grid or shape with 5 to 9 letters. The goal is to create as many words as possible using each letter no more than once. There are many variations of the rules, e.g., the minimum word length (usually 3 or 4) may vary, and it may be stipulated that specific letters must be included in any word. The objective of the puzzle is to find words which can be made using a given group of letters. Each letter may only be used once in