If you want to say in French "I was happy that I was wearing" do you say "J'étais heureux que je portasses" or "que je portais" or present subjunctive "que je porte" ? Merci beaucoup!
But if you want to know which subjunctive tense you should have used in a similar context (like "He was happy that I was wearing...") => it would be "portât"
You must use the subjonctive if there are two different subjects :
I was happy that I was wearing ... : j'était heureux de porter ...
I was happy that he was wearing ... : j'étais heureuse qu'il porte ...