Here's how it works:
* Yo saludé (I greeted)
* Tú saludaste (You greeted)
* Él/Ella/Ud. saludó (He/She/You formal greeted)
* Nosotros saludamos (We greeted)
* Vosotros saludasteis (You plural greeted)
* Ellos/Ellas/Uds. saludaron (They/You plural formal greeted)