What does yo regreso mean in English?

In English, the single Word "returned" constitutes the ENTIRE conjugation of the preterit tense. In Spanish, it takes SEVEN DIFFERENT WordS to say "returned." Then there's the participle "returned" as in "This is the pile of returned goods." In English, again, it takes just one Word. In Spanish, it takes four to do the same job. This question is asking for a list of eleven Words. Following:

devolví

devolviste

devolvió

devolvimos

devolvisteis / devolvieron

devolvieron

devuelto

devuelta

devueltos

devueltas

All the above, one way or another, mean "returned" in Spanish.