Is the sentence correct ? several days ago I asked a question: Can I say " I've got to get leaving " ? one of English friends told me that it was not correct ,usually "I've got to get going/moving " would be ok if we want to use the pattern " I've got to get doing" ,but one of my American teachers said it is ok to say "I've got to get leaving " .I got a bit confused ,maybe it's different between British Eng. and American Eng. Is there any American friend here to help answer this question ? But certainly I appreciate any answer from any country. Thank you so much for your kind help