我有点搞不清如果before段是过去时,seem部分是该用什么时态?
假如前半句我用完成时态,那应该变seem部分还是变to be部分?
It have seemd to be a long time before the food came?
还是
It seems to have been a long time before the food came?
It have seemd to be a long time before the food came? (错误)
It seems to have been a long time before the food came? (错误)
It seemed to have been a long time before the food came. (正确)
如:He seemed to have been ill. 他当时看起来好像曾经生过病。(摘自《薄冰英语惯用法词典》p.909)
【说明】这不是疑问句,句末不能用问号。