I'm doing good at it so far, right? good! (colloquially) could also be written as: I'm doing well at it so far, right? Up 'til now I'm doing good, right? So far I'm going good, right? No problems yet, right? -all have pretty much the same meaning. I'm deeply offended by what he said about me. -good! that is the most natural way to say that imo. I haven't thought of that in a long time. (a memory etc.) -good! Could also be said as: I haven't thought about that in a long time. Its been a long time since I've thought about that. That takes me back. I've never even doubted your talent for one second. -good! Could also be written as: I've never doubted your talent for a second. Additional Details: And, can I use these interchangeably? (lifting something etc.) I was stronger than I thought of myself to be. I was more powerful than I thought of myself to be. -good! although power usually pertains to destructive forces (imo) so stronger would be the more correct sentence. Could also be written as: I was stronger than I thought! I'm stronger than I thought! Hope it helps! :-)