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"Lamentar" is a transitive verb which is often translated as "to regret", and "lamentarse" is a pronominal verb which is often translated as "to complain". Learn more about the difference between "lamentar" and "lamentarse" below.
lamentar(
lah
-
mehn
-
tahr
)A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
lamentarse
A pronominal verb always uses a reflexive pronoun. (e.g., Te ves cansado.).
a. to complain
No tiene sentido lamentarse de lo ocurrido.There's no sense in complaining about what happened.
b. to grumble
El cascarrabias caminaba por la calle, lamentándose de todo. The curmudgeon walked down the street, grumbling about everything.
lamentarse(
lah
-
mehn
-
tahr
-
seh
)A pronominal verb always uses a reflexive pronoun. (e.g., Te ves cansado.).
a. to complain
No tiene sentido lamentarse de lo ocurrido.There's no sense in complaining about what happened.
b. to grumble
El cascarrabias caminaba por la calle, lamentándose de todo. The curmudgeon walked down the street, grumbling about everything.
lamentar
A transitive verb is a verb that requires a direct object (e.g., I bought a book.).