wash them
lavar
This depends of the brand of washing machine you have. Most quick wash cycles will vary between fifteen and thirty minutes.
rapido
You can learn spanish quick if you attend Spanish classes in a city of Spain. There are academies that offer courses in Spain and in cities such as Barcelona.
A spanish person
Lavar
"Lavar" means "to wash".
it depends on what context you are using the wash. As in the wash for clothes, it would be, ropas para lavar, if it is in the car wash it is then lavado de coches
rapido
"Wash the dishes"
Lavandose los dientes. (In spanish you wash your teeth; you don't brush them.)