"irse debilitando" in English

to book out- to buzz off- to check out- to clear- to clear out- to clear up- to come away- to disappear- to drive off- to go- to go- to go- to go away- to go away- to go off- to go out- to go out- to lift- to move along- to move out- to pass off- to pull out- to push along- to run along- to run away- to shuffle off- to take off- to uncurl- to walk off- to escape- to slip away- to have to take an exam- to run- to leave- to be off- to get going- to head out- to hit the road- to walk away- to dash off

fading

to weaken- to debilitate- to enfeeble- to drag down- to enervate- to shake- to soften up- to undercut- to undermine- to waste- to wither- to sap