-는/은 것, could anyone explain it to me Still can't wrap my head around -는/은 것.....I've been going around it and still don't get it. I understand it but I can't seem to produce anything with that.... I would prefer it to be explained either simply or with a linguistic approach....I will be extremely grateful.

I still don´t understand the differences between -는 것, -기 and -고. As I understand it -고 is used to link verbs that speaks about the same subject. I've tried to look for more explanations on -는 것 and -기 but haven't found anything. If someone could be so kind to explain when each is used with examples, I will be really grateful. Ps. I've been trying to understand the last two but it all translates into an -ing form (which doesn't help at all when in Spanish there's also different constructions).

저의 취미는 책읽기예요. Is this construction correct? I'm not sure if it's really correct or if it sounds natural.