Hello everyone, I'm learning english and sometimes it's sort of confusing but I like it a lot and my goal is speak it fluently someday. However, I was wondering if you could help me with a couple of sentences? I understand what the two sentences below mean but I'd like to know which of them is grammatically correct. 1.- They pretended they weren't listening to our conversation. 2.- They pretended not to be listening to our conversation. Can they be interchangeable? Which one would be grammatically correct number 1 or 2? Tnanks in advance, any help will be appreciated.