(It could have been a mistake or done on purpose. , it doesn't matter anymore.)
The phrase is built using the of the verb ser (to be). Sea : Third-person singular present subjunctive of ser . Como : How / as. sea_como_sea
De todas formas (anyway), pase lo que pase (whatever happens), en cualquier caso (in any case). (It could have been a mistake or done on purpose
: To show that an action will happen despite obstacles. " Sea como sea , voy a terminar este proyecto hoy." Como : How / as
If you want to talk about a specific thing rather than a manner , use "sea lo que sea" (whatever it may be) instead.
33 incredibly useful phrases to help you master the subjunctive
: Used similarly to "anyway" or "regardless" after discussing different possibilities.