Now that we've gone through the basics of verbs in the present tense, let's take a look back at what we've learned.
A verb, in the infinitive form, doesn't indicate who is performing the action. We can recognize infinitive forms by the verb's ending. Infinitive forms end in either -AR, -ER, or -IR.
A verb, when it is conjugated, indicates who is performing the action. Sometimes, a personal pronoun (yo, tú, él/ella/usted, nosotros, vosotros, ellos/ellas/ustedes) will be placed before the verb, but this is not necessary. Personal pronouns add emphasis, and can improve clarity, but one can't rely on them. By learning the conjugated forms of -AR, -ER, and -IR verbs, one can understand who is performing the action.
For regular verbs (there are exceptions), the following patterns can be used to conjugate verbs.