The verb tener is irregular, so conjugations must be learned by heart because there is no any rule that this type of verbs follow. The verb tener can be used referring to ownership meaning to have, in expressions that use the verb to be and with the conjunction que meaning to have to.
Nicaragua is the largest country in the Central American isthmus and was first conquered by the Spanish Empire in the 16th century before achieving independence in 1821. Nicaragua has a very multiethnic population estimated at 6.28 million in 2018, an increase from the 2013 estimate of 6,080,000.