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"Certezas" is a form of "certeza", a noun which is often translated as "certainty". "Las dudas" is a form of "duda", a noun which is often translated as "doubt". Learn more about the difference between "certezas" and "las dudas" below.
la certeza(
sehr
-
teh
-
sah
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
1. (sureness)
a. certainty
No lo puedo decir con certeza, pero creo que ese es el hombre que vi robar la tienda.I can't say with certainty, but I think that's the man I saw rob the store.
la duda(
doo
-
dah
)A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
a. doubt
La princesa tenía dudas sobre el amor del príncipe.The princess had doubts about the prince's love.
