Respuestas
Respuesta:
Tiana: I'm so tired, I have worked a lot of time!
Cristian: I'm tired too, I have played videogames during all afternoon.
Olivia: But play videogames is fun, work is not funny. Tiana has worked during all the day, but don't worry I have prepared coffee and a cake only for you, Tiana.
Cristian: Hey! I want cake too.
Olivia: No. You haven't helped to prepare it, so you won't eat it.
Cristian: Oh! please!
Tiana: It's okay, you can eat some cake.
Cristian: Cool! now I can say you have worked a lot of time than me Tiana!
Explicación
estructura del Presente perfecto
sujeto + HAVE/HAS (dependiendo del sujeto, si es she he it es HAS — I, we, you, they HAVE) + verbo en participio ó terminación -E, -ED
ejemplo en español: yo he, tu has, él/ella ha, ellos han, nosotros hemos (jugado)
incluí otros tiempos verbales espero haber ayudado y que esté bien:)