I have had breakfast.是什么现在完成时还是过去完成时?

英语翻译现在完成时:I have made love with her by now.过去完成时:I had made 现在完成时和过去完成时一般的意思是什么 have done和had done的意思 I have had lunch.怎么变成过去完成时 现在完成时还是过去完成时? 现在完成时还是过去完成时？ 请问：I have had my breakfast I an have some had 改成现在完成时 since加现在完成时还是过去完成时 He【 has gone to】谓语 Beijing 现在完成时和过去完成时的have 与 had都是助动词吧 现在完成时 过去完成时 怎样强调动词 是have/had done+动词原型吗 had done 是过去完成时,have done是现在完成时,那have been和had been呢?be不是动词呀 过去完成时.I have got a cold.对还是I had got a cold对?这些应该怎么用?