The term Spanish verb can refer to two different words: esta and AMO. Esta is a four-letter verb that means 'to be' in Spanish. It is used in the present tense and is conjugated differently depending on the subject. AMO is a three-letter verb that means 'to love' in Spanish. It is also used in the present tense and is conjugated differently depending on the subject. Both of these verbs are commonly used in Spanish language conversations.