The most spoken and written language in Puerto Rico is Spanish, and it is the first official language of the Commonwealth of Puerto Rico. English is the second official language, and it is taught in all Puerto Rican schools. However, the vast majority of Puerto Ricans do not use English regularly other than some borrowed English words in their ordinary Spanish speech. According to various surveys, the majority of Puerto Ricans are not fluent in English, and fewer than 20% of Puerto Ricans speak English fluently. Nonetheless, English is also an official language in Puerto Rico, and it is used by all of the U.S. federal agencies in Puerto Rico. In summary, Puerto Ricans speak Spanish as their primary language, but English is also an official language and is taught in schools. While some Puerto Ricans may be fluent in English, the majority are not.