Inventar vs. inventarse vs. fabricar
When talking about making up or fabricating stories, lies, or excuses in Spanish, the verbs inventar, inventarse, and fabricar are commonly used. While they share similar meanings, they differ in their level of formality, the complexity of the deception, and the speaker's emphasis on personal involvement or spontaneity.
Inventar
This is the standard, neutral verb used to express the act of creating or making up a story, lie, or excuse. It focuses simply on the act of creating something that is not true or does not exist, without necessarily implying malice.
No creas nada de lo que dice porque le gusta inventar rumores.
(Do not believe anything he says because he likes to invent rumors.)
Tuvimos que inventar una buena excusa para no ir a la boda.
(We had to make up a good excuse to not go to the wedding.)
Es muy fácil inventar historias cuando nadie puede comprobar los hechos.
(It is very easy to make up stories when no one can verify the facts.)
El autor decidió inventar un mito sobre el origen de la ciudad.
(The author decided to invent a myth about the origin of the city.)
No debes inventar cosas sobre tus compañeros de trabajo.
(You should not make up things about your coworkers.)
Inventarse
This is the pronominal form of inventar and is heavily used in everyday, colloquial Spanish. It emphasizes that someone made something up out of thin air, often spontaneously, and usually for their own convenience or benefit.
Se inventó que estaba enfermo para poder quedarse en casa jugando videojuegos.
(He made up that he was sick so he could stay at home playing video games.)
Me tuve que inventar una respuesta rápida porque no había estudiado para el examen.
(I had to make up a quick answer because I had not studied for the exam.)
Siempre te inventas problemas que realmente no existen.
(You are always making up problems that do not really exist.)
Ella se inventó toda la anécdota simplemente para llamar la atención del grupo.
(She made up the whole anecdote simply to get the attention of the group.)
No sé de dónde se inventan esas reglas tan absurdas.
(I do not know where they make up those absurd rules from.)
Fabricar
In the context of lies and stories, fabricar implies a deliberate, complex, and calculated construction of a deception. It is often used in formal, legal, or journalistic contexts to describe malicious acts like fabricating evidence, a solid alibi, or a conspiracy.
El abogado demostró que la policía intentó fabricar pruebas contra su cliente.
(The lawyer proved that the police tried to fabricate evidence against his client.)
Los sospechosos pasaron semanas intentando fabricar una coartada perfecta.
(The suspects spent weeks trying to fabricate a perfect alibi.)
La prensa sensacionalista suele fabricar escándalos para vender más revistas.
(The tabloid press usually fabricates scandals to sell more magazines.)
No puedes simplemente fabricar un documento falso y esperar que el juez no se dé cuenta.
(You cannot just fabricate a false document and expect the judge not to notice.)
El gobierno dictatorial fue acusado de fabricar una crisis internacional para justificar las nuevas leyes.
(The dictatorial government was accused of fabricating an international crisis to justify the new laws.)
Summary
In summary, use inventar as the standard translation for making up a story or excuse. Choose inventarse for informal situations to emphasize that someone pulled a lie or excuse out of thin air for their own benefit. Finally, reserve fabricar for more formal or serious contexts where a complex lie, evidence, or plot is deliberately and maliciously constructed.