The speaker coughed. He reached for the water glass. Julian tiene muchos perros, y el Ilevo dos de ellos con el al parque. A verb is a word, which expresses action or state of being. Verbs have many different forms.
Active voice indicates that the subject of the sentence is doing the acting.
Passive voice, on the other hand, indicates that the subject of the sentence is being acted upon. Tense indicates when the action occurs. Present tense expresses action which is happening at the present time, or which happens continuously. Past tense indicates that the action was completed at some time in the past. Future tense expresses action, which will take place in the future.