if you could see me now如题,为什么表时间用的是now而情态动情could却用的是过去式?

If You Could See Me 歌词 if you could see me now-------the script 空间链接 if you could see me now求空间链接if you could see me now -the script谢谢啊 If You Could See 歌词 if i could see you 求If You Could See Me Now-The Script空间音乐链接 If You Could Only See 歌词 If You Could Only Be Me 歌词 If only you could understand me If You Can See Me 歌词 The Script——If You Could See Me Now 空间链接 要可以听得出来的! if you could see me now如题,为什么表时间用的是now而情态动情could却用的是过去式? if you were blind ,you[ ]can还是could see nothingif you were blind ,you[ ]can还是could see nothing If only you could see the tears In the world you left behind If only you could you see me after two or three days I could be everything you need change' if you want to see、 So don't say sorry Baby take me away什 I could be everything you need change if you don,t want to see So say sorry Baby take me away ...” 求歌词：If you could see that I the one who understands you.If you could see that I the one who understands you.Been here all along so why can't you see You belong with me这三句是连在一起的 是歌曲中的一小句 是我在一个视频