邀请函中有一句:we would be looking forword to your coming!上句中为什么要用would be?不能用will be

邀请函中有一句:we would be looking forword to your coming!上句中为什么要用would be?不能用will be 请问这里为什么用could 和would?We would be honoured if you could accept our invitation to perform an item on the piano for this occasion.这是篇邀请函,为什么这边不是用将来时? Where We Would Be 歌词 Where Would We Be 歌词 Where Would We Be 歌词 We would be happy 中文什么意思 Where Would We Be Now 歌词 Where Would We Be Now 歌词 Hope we would be good friends forever中文什么意思 We would be grateful if you could help us.翻译 It coulde be that we would never see them again. That we would be together through-out every single thing! all would be more thankful if we were more thoughtful We would be very much pleased if he _____( come ). He asked me__________________A.how long we are away B.how long are we awayC.how long we would be away D.how long would we be away that would certainly be the kind of initiate that we would take a look at The business is risky.But ___,we would be richA:should we succeedB:might we succeedC:would we succeedD;could we succeed 为什If we would be more careful,we---------better results now么只能用would be getting 不能用 would have got