This form expresses that X does not reach the level of Y for a certain criterion. Y is mentioned for comparison with X
Y can take verbs, but only verbs that convey an opinion or hearsay
To further dissect this grammar structure, let's look at an example sentence:
今の学生は昔の学生ほど本を読まなくなった。
X = 今の学生 Today’s students
Y = 昔の学生 Students in the past
Therefore, the meaning of the sentence is:
Students today read less books than students in the past.
Conjugation
Examples
彼女ほど優しい人はいない。
There’s no one as kind as her.
私は妹ほど両親に愛されていない。
My parents don’t love me as much as they love my younger sister.