• Who or *whom to talk about people:- Sigmund Freud, who was a recognized psycologist, had fear of ferns
= Sigmund Freud, quien era un reconocido psicólogo, tenía miedo a los helechos
- That is the woman whom I spoke to you about
= Esa es la mujer de quien te hablé.
*Whom is more formal
• Wich or that, to talk about things:- "Kisses", wich are chocolates of Hersheys, are called so because the machine that makes them seems to be kissing the conveyor belt
= "Kisses", los cuales son chocolates de Hersheys, se llaman así porque la máquina que los hace parece estar besando la banda
- The food of airplanes, that usually isn't so good, tastes bad because the noise of the aircraft alterares its flavour
= La comida de los aviones, que usualmente no es muy buena, sabe mal porque el sonido de la aeronave altera su sabor
• Where, to talk about places:- Japon, where lives the tenth largest poblation in the world, is not one of the biggest countries but it is formed by 6852 islands.
= Japón, donde vive la décima población más grande en el mundo, no es uno de los países más grandes, pero está formado por 6852 islas.
