Should we use possesive pronoun or posssive adjective after "pre+geround+.."
Why we should use possesive prounon after the gerounds? I've read in an English article that says "Verb forms ending in “-ing” can function as nouns and are sometimes preceded by pronouns. Such verb/noun forms are called “gerunds.” You’ll often see sentences like this: “I didn’t appreciate him returning the car with the gas tank empty.” But “returning” is a gerund, so it should be preceded by a possessive pronoun: “I didn’t appreciate his returning the car. . . .”
But I don't think we use like this .for example we say "your cooking or your detailing answer or like the one the text gave "I didn't appreciate him..." not 'his'
Am I right or I didn't get the point ! What I want to know is after a preposiotion we usually use gerounds .after using geround should it be followed by possesive pronoun ? Or possesive adjective such as "Your,her,him"