The phrase 'Every 3 years' does not function as an adverb and does not fit within the 2- or 11-letter categorization. It acts as a frequency expression and contains more than the specific number of letters required for the given category.
When examining the phrase 'Every 3 years', we can determine that it does not serve as an adverb, nor does it fit into the category of 2- or 11-letter words. Adverbs typically modify verbs, adjectives, or other adverbs, often indicating how, when, where, why, or to what extent an action is performed. However, 'Every 3 years' is more likely to be considered a fixed expression that denotes a frequency of recurrence, serving as a temporal measure rather than an adverbial phrase.
The count of letters for the phrase 'Every 3 years' exceeds both 2 and 11 letters, and therefore does not fit the mentioned category. It is comprised of 12 letters when spaces are not counted, and 13 characters if spaces are included. The misconception might arise from the use of 'Every' as part of the phrase, which by itself is an adverb of frequency but within the full phrase operates differently.