Un electrón se encuentra en la capa M
¿Que valor de número cuántico principal representa?
Respuestas a la pregunta
En el idioma ingles, el presente continuo se refiere a los sucesos que ya ocurrieron y siguen teniendo efectos en el presente. Usa los verbos auxiliares have y la estructura have been.
Si ésto se aplica a una conversación simple tendremos algo como lo siguiente, se usará la conversación entre Johon y Mary.
Conversación en inglés en presente perfecto:John.- Hi, Mary.
Mary.- Hi John. Have you been here long time ago?
John.- Oh, no. I’ve (I have) arrived five minutes ago.
Mary.- Great. I have think you have been here at least an hour before. I have drived all the morning, but traffic was so heavy.
John.- Never mind Mary. Have you eat yet?
Mary.- No, no yet.
John.- Then come to that restaurant. I have come here for six months, cooks well.
Mary.- No, better go to Tako Loko. My uncle has worked there for two years, and says that are so good tacos.
John.- Is expensive?
Mary.- Not at all. My uncle says that from the begining, they have sold so cheap.
John.- Ok, its has been decided. Let’s go