I have trouble with my roommate/he has had trouble with cars and their owners.请问下这2句什么区别
问题描述：
I have trouble with my roommate/he has had trouble with cars and their owners.请问下这2句什么区别
第二句 不能用he had trouble with cars and their owners?或 he has trouble with cars and their owners?
答
第二句话是现在完成时,表示他过去就对车和其主人厌烦,并持续到现在.只用has表示现在的状态,had则表示过去的状态.