Ingles Voz Passiva

Overview
| Active | Passive |
Simple Present | Once a week, Tom cleans the house. | Once a week, the house is cleaned by Tom. |
Present Continuous | Right now, Sarah is writing the letter. |Right now, the letter is being written by Sarah. |
Simple Past | Sam repaired the car. | The car was repaired by Sam. |
Past Continuous | The salesman was helping the customer when the thiefcame into the store. | The customer was being helped by the salesman when the thief came into the store. |
Present Perfect | Many tourists have visited that castle. | That castle has been visited bymany tourists. |
Present Perfect Continuous | Recently, John has been doing the work. | Recently, the work has been being done by John. |
Past Perfect | George had repaired many cars before hereceived his mechanic's license. | Many cars had been repaired by George before he received his mechanic's license. |
Past Perfect Continuous | Chef Jones had been preparing the restaurant's fantasticdinners for two years before he moved to Paris. | The restaurant's fantastic dinners had been being prepared by Chef Jones for two years before he moved to Paris. |
Simple Future
will | Someone willfinish the work by 5:00 PM. | The work will be finished by 5:00 PM. |

Partida doble
El sistema de partida doble es el método o sistema de registro de las operaciones más usado en la contabilidad.El origen de la Contabilidad por partida doble data del siglo XV en Italia, siendo el franciscano Fray Luca Pacioli el que escribió el primer tratado contable.
Su postulado principal es "No haydeudor sin acreedor, ni acreedor sin deudor". Esto significa que, considerando la totalidad de los elementos patrimoniales de la empresa, si un elemento disminuye es porque otro aumenta, o, lo que es lomismo, si se produce una entrada en un elemento es porque hay una salida de otro elemento y, por tanto, hacer un cargo en una cuenta (o cuentas) supone siempre tener que hacer un abono en otra (u...