Final answer:
The missing conjugated forms of the verb 'volver' are: 'vuelvo', 'volvemos', and 'vuelven'.
Step-by-step explanation:
In the sentence 'Volver: yo ________ nosotros/as ________ ellos/as ________', the missing words should be conjugated forms of the verb 'volver'. The correct conjugations are: 'vuelvo' for the first person singular ('yo'), 'volvemos' for the first person plural ('nosotros/as'), and 'vuelven' for the third person plural ('ellos/as').
Learn more about Spanish Verb Conjugation