go through the motions

US /ɡoʊ θruː ðə ˈmoʊʃənz/
UK /ɡoʊ θruː ðə ˈmoʊʃənz/
"go through the motions" picture
1.

faire les gestes, agir sans conviction

to do something in a mechanical or unenthusiastic way, without genuine interest or effort

:
He was just going through the motions at work after he decided to quit.
Il ne faisait que les gestes au travail après avoir décidé de démissionner.
She felt like she was just going through the motions in her relationship.
Elle avait l'impression de ne faire que les gestes dans sa relation.