The following information is based on a proposed article, an idea which comes from the book, Madrigal's Magic Key to Spanish. In the book, the author shows the reader how to quickly convert English words into Spanish. The same goes for converting Spanish words into English.

Note: This doesn't work for all words, though it can work for many. 

As an example, let's say you want to convert the Spanish word, "usualmente," into English. All you do is remove "mente," and you have the English word, "usual."

Another simple example is the word, "dentista." Remove the "a" and you have the word, "dentist." 

There are more examples, some more complicated than others? If this is of interest to you, let me know.