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
Two Letter Words fans. It includes eight tracks from the then newly released "Mirror Blue", and thus serves as an interesting contrast with the original album's controversial production. "Two Letter Words" was initially released under a deal with Capitol Records, Thompson's label at the time, which permitted him to supplement his income with albums not recorded in the studio provided that they were not made available in retail outlets and were pressed in limited quantities. In 2009 it was re-released as a digital download available via Thompson's website. As of January 2017, it is no longer available from this source, but can be