“他是否可以知道她的电话号码”用英文怎么说..

问题描述:

“他是否可以知道她的电话号码”用英文怎么说..
RT
He can if he will know her telephone number.
He could whether knew her telephone number.
这两个有对的吗?
是过去时

whether he could know her telephone number or not
if he could know her telephone number