Spanish, or Castilian, is a Romance language of the Indo-European language family that evolved from colloquial Latin spoken on the Iberian Peninsula of Europe. Today, it is a global language with about 486 million native speakers, mainly in the Americas and Spain. Spanish is the official language of 20 countries. It is the world's second-most spoken native language after Mandarin Chinese; the world's fourth-most spoken language overall after English, Mandarin Chinese, and Hindustani (Hindi-Urdu); and the world's most widely spoken Romance language. The largest population of native speakers is in Mexico.
Some of the regional varieties of the Spanish language are quite divergent from one another, especially in pronunciation and vocabulary, and less so in grammar.
In Spanish grammar, voseo is the use of vos as a second-person singular pronoun, along with its associated verbal forms, in certain regions where the language is spoken. In those regions it replaces tuteo, i.e. the use of the pronoun tú and its verbal forms. Voseo can also be found in the context of using verb conjugations for vos with tú as the subject pronoun, as in the case of Chilean Spanish, where this form coexists with the ordinary form of voseo.
Rioplatense Spanish, also known as Rioplatense Castilian, River Plate Spanish, or Argentine Spanish, is a variety of Spanish originating in and around the Río de la Plata Basin, and now spoken throughout most of Argentina and Uruguay. It is the most prominent dialect to employ voseo in both speech and writing. Many features of Rioplatense are also shared with the varieties spoken in south and eastern Bolivia, and Paraguay. This dialect is often spoken with an intonation resembling that of the Neapolitan language of Southern Italy, but there are exceptions.
Mexican Spanish is the variety of dialects and sociolects of the Spanish language spoken in the United Mexican States. Mexico has the largest number of Spanish speakers, with more than twice as many as in any other country in the world. Spanish is spoken by just over 99.2% of the population, being the mother tongue of 93.8% and the second language of 5.4%.
This article presents a set of paradigms—that is, conjugation tables—of Spanish verbs, including examples of regular verbs and some of the most common irregular verbs. For other irregular verbs and their common patterns, see the article on Spanish irregular verbs.
Caribbean Spanish is the general name of the Spanish dialects spoken in the Caribbean region. The Spanish language was introduced to the Caribbean in 1492 with the voyages of Christopher Columbus. It resembles the Spanish spoken in the Canary Islands, and, more distantly, the Spanish of western Andalusia.
Central American Spanish is the general name of the Spanish language dialects spoken in Central America. More precisely, the term refers to the Spanish language as spoken in Costa Rica, El Salvador, Guatemala, Honduras, and Nicaragua. Panamanian Spanish is considered a variety of Caribbean Spanish, it is transitional between Central American and Caribbean dialects.
Chilean Spanish is any of several varieties of the Spanish language spoken in most of Chile. Chilean Spanish dialects have distinctive pronunciation, grammar, vocabulary, and slang usages that differ from those of Standard Spanish. Formal Spanish in Chile has recently incorporated an increasing number of colloquial elements.
Cuban Spanish is the variety of the Spanish language as it is spoken in Cuba. As a Caribbean variety of Spanish, Cuban Spanish shares a number of features with nearby varieties, including coda weakening and neutralization, non-inversion of Wh-questions, and a lower rate of dropping of subject pronouns compared to other Spanish varieties. As a variety spoken in Latin America, it has seseo and lacks the vosotros pronoun.
Colombian Spanish is a grouping of the varieties of Spanish spoken in Colombia. The term is of more geographical than linguistic relevance, since the dialects spoken in the various regions of Colombia are quite diverse. The speech of the northern coastal area tends to exhibit phonological innovations typical of Caribbean Spanish, while highland varieties have been historically more conservative. The Caro and Cuervo Institute in Bogotá is the main institution in Colombia to promote the scholarly study of the language and literature of both Colombia and the rest of Spanish America. The educated speech of Bogotá, a generally conservative variety of Spanish, has high popular prestige among Spanish-speakers throughout the Americas.
Equatoguinean Spanish is the variety of Spanish spoken in Equatorial Guinea. This is the only Spanish variety that holds national official status in Sub-Saharan Africa. It is regulated by the Equatoguinean Academy of the Spanish Language and is spoken by about 90% of the population, estimated at 1,170,308 for the year 2010, all of them second-language speakers.
Peninsular Spanish, also known as the Spanish of Spain, European Spanish, or Iberian Spanish, is the set of varieties of the Spanish language spoken in Peninsular Spain. This construct is often framed in opposition to varieties from the Americas and the Canary Islands.
Nicaraguan Spanish is geographically defined as the form of Spanish spoken in Nicaragua. Affectionately, Nicaraguan Spanish is often called Nicañol.
Guatemalan Spanish is the national variant of Spanish spoken in the Central American country of Guatemala. While 93% of Guatemalans in total speak Spanish, it is the native language of only 69% of the population due to the prevalence of languages in the indigenous Mayan and Arawakan families. Guatemalans typically use the second-person singular personal pronoun vos alongside the standard Spanish second-person singular pronouns tú and usted to form a three-level system of second-person singular address.
Salvadoran Spanish is geographically defined as the form of Spanish spoken in the country of El Salvador. The Spanish dialect in El Salvador shares many similarities to that of its neighbors in the region, but it has its stark differences in pronunciation and usage. El Salvador, like most of Central America, uses voseo Spanish as its written and spoken form, similar to that of Argentina. Vos is used, but many Salvadorans understand tuteo. Vos can be heard in television programs and can be seen in written form in publications. Usted is used as a show of respect, when someone is speaking to an elderly person.
Uruguayan Spanish, a part of Rioplatense Spanish, is the variety of Spanish spoken in Uruguay and by the Uruguayan diaspora.
Andean Spanish is a dialect of Spanish spoken in the central Andes, from southern Colombia, with influence as far south as northern Chile and Northwestern Argentina, passing through Ecuador, Peru, and Bolivia. While similar to other Spanish dialects, Andean Spanish shows influence from Quechua, Aymara, and other indigenous languages, due to prolonged and intense language contact. This influence is especially strong in rural areas.
Spanish is the most-widely spoken language in Ecuador, though great variations are present depending on several factors, the most important one being the geographical region where it is spoken. The three main regional variants are:
Bolivian Spanish is the variety of Spanish spoken by the majority of the population in Bolivia, either as a mother tongue or as a second language. Within the Spanish of Bolivia there are different regional varieties. In the border areas, Bolivia shares dialectal features with the neighboring countries.
Costa Rica 
