LA VOZ PASIVA

Para pasar de una frase activa a una pasiva debemos:

Poner el objeto de la frase activa y ponerlo como sujeto en la pasiva

Observar en que tiempo est el verbo de la frase activa. Lo nico que

se debe hacer es colocar el verbo to be en el mismo tiempo verbal que

en la frase activa y aadirle el verbo en past participle (-ed/3 columna)

My grandfather planted this tree

This tree was planted by* my grandfather

Present simple He delivers the letters The letters are delivered

Past simple He delivered the letters The letters was delivered

Future simple He will deliver the letters The letters will be delivered

Present continuous He is delivering the letters The letters was being delivered

Past continuous He was delivering the letters The letters were being delivered

Going to He is going to deliver the letters The letters are going to be

delivered

Present perfect He has delivered the letters The letters had been delivered

Past perfect He had delivered the letters The letters had been delivered

Infinitive He has to deliver the letters The letters have to delivered

Modals He must deliver the letters The letters must be delivered

BY OR WITH?

By: cuando hablamos de una persona With: cuando hablamos de un instrumento, objeto o material