baseerd
Baseerd is a Dutch term connected to the verb baseren, meaning to base or ground something on something else. In standard Dutch, the correct past participle is opgebouwd as gebaseerd. The form baseerd is generally considered nonstandard and is most often seen as a misspelling or a dialectal variant.
Geared toward correct grammar, the predicative use is: Het besluit is gebaseerd op feiten. Here, gebaseerd functions
Because standard Dutch uses gebaseerd instead of baseerd, the latter is rarely appropriate in formal writing.
Baseren (to base) is the verb from which baseado is derived; basis and basiswoord as root concepts
Baseren, gebaseerd op, op feiten gebaseerde theorie, de conclusie is gebaseerd.