I guess I could come over.为什么用could不用can呢

I guess I could come over.为什么用could不用can呢 I guess you could look at it that way 译 I guess I do 英语翻译guess i could make it easier on myself...but i could never follow I guess it's 翻译:i guess not I guess not guess who am i I guess i just likes Can you guess which school i come from?(in Guangzhou Haizhuqu) My name is Marty Fielding and I guess you could say I am one in a million.Tell me why? I wish you could come with me lun I wish that your sister could come to visit me. I wish our hearts could come together as one .. I could come a little earlier.(改为一般疑问句) if everything could come again i'll think it i guess this is-----ereser I guess he is ill.