If he had had time,he would come.有这种句型嘛?是有一个had还是两个?

If he had time,he would come to visit you.此句中had 是什么词性? 有Had he better do sth 这种句型吗 he would have if i had asked if he had taken the medicine on time ,he would have felt bet If I had time,I would come to see you. 高中英语句子转换一条if she had come to the party,she would have met he If he had only had enough money,he would have bought that ho If he had worked hard____. 英语翻译如果他昨天来这里,就会知道.if he had come yesterday,he would know.为什么 I ( )(come)too if I had time it never would have happened if he had not had a flat tire o He told as if he knew everything.还是He told as if he had know