cometeríais

Verb

conditional form-of plural second-person

cometerの二人称複数条件法

English Meaning

second-person plural conditional of cometer

Si no leyerais detenidamente el contrato, cometeríais un error muy costoso.

契約書をしっかり読まなければ、非常に高価な過ちを犯すことになるでしょう。

If you did not read the contract carefully, you would commit a very costly error.