it is said 的意思是“据说”.如It is said he was a teacher. 据说他以前是一名教师.
it is reported的意思是“据报道”.如：Itis reported the driver drunk a lot of wine. 据报道那个司机喝了大量的酒.It is said 后面加上什么时态，it is reported后面又是加什么时态？时态没有限制，就看你像表达什么意思了。