vs
QUICK ANSWER
"Prevenid" is a form of "prevenir", a transitive verb which is often translated as "to prevent". "Previstos" is a form of "previsto", an adjective which is often translated as "predicted". Learn more about the difference between "prevenid" and "previstos" below.
prevenir(
preh
-
beh
-
neer
)A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
1. (to avoid)
a. to prevent
Las vacunas suponen una forma de prevenir muchas enfermedades graves.Vaccines are a way of preventing many serious diseases.
2. (to alert)
a. to warn
Le previne de que podrían multarlo si no se ponía el cinturón de seguridad.I warned him that he could be fined if he didn't wear his seat belt.
3. (to foresee)
a. to anticipate
Un jugador de ajedrez tiene que prevenir los movimientos de su contrincante.A chess player has to anticipate his competitor's moves.
a. to prepare
Prevén tu maleta para el viaje; partimos en una hora.Prepare your suitcase for the trip; we're leaving in an hour.
prevenirse
A pronominal verb always uses a reflexive pronoun. (e.g., Te ves cansado.).
a. to take precautions
Se ha exhortado a la población a prevenirse contra el intenso calor.The public has been urged to take precautions against the intense heat.
b. to prepare
La familia se previno para el invierno almacenando madera y comida.The family prepared for the winter by storing wood and food.
a. to be ready
No me previne para nadar porque no sabía que había piscina.I wasn't ready for swimming because I didn't know there was a swimming pool.
previsto(
preh
-
bees
-
toh
)An adjective is a word that describes a noun (e.g., the big dog).
