mudar de pato para ganso

== Portuguese == === Alternative forms === mudar de pato pra ganso (syncopated, more common) === Etymology === Literally, “to change from duck to goose”. Compare French passer du coq à l'âne, with a similar structure. === Verb === mudar de pato para ganso (first-person singular present mudo de pato para ganso, first-person singular preterite mudei de pato para ganso, past participle mudado de pato para ganso) to change subjects abruptly