I'm backing

I'm backing 为什么不是I'm backing I am backing and I am backing.be quite Even now I smelt bread backing.为什么用backing Even now I smelt bread backing.为什么用backing i'm back是什么时态?如果是我已经回来了,是不是用i've back我正在回来是i'm backingi'm back呢? I will be back &I will be backing..正确的说法不是i will be backing吗?怎么阿诺来个i will be back俚语吗? backing singer backing vocals backing board backing是什么意思 embroidery backing backing the beard! backing on the path backing什么意思 financial backing是什么意思 英语翻译The GraceIn better days I've been known to listenI go to waste all my time is missingI'm mapping out my ending,it's never gonna happen nowThese things are condescendingwith everybody backing downYou pray to stars that can help you get by