Here's the breakdown:
* es is the singular form of the verb "to be" (ser) in the third person.
* son is the plural form of the verb "to be" (ser) in the third person.
* clases is the plural form of the word "class" (clase).
* español is the correct spelling of the word "Spanish".
Therefore, the correct translations of "es clases de espanol" would be:
* "It is Spanish classes" (using the singular form "es")
* "They are Spanish classes" (using the plural form "son")
The most appropriate translation depends on the context of the sentence.