ใฉใใชใซไธ็ๆธๅฝใใฃใฆใฟใฆใใ ็งใฏๅฝผใ่ชฌๅพใใฆ่ใใๅคใใใใใใจใใงใใพใใใงใใใ
J. No matter how hard I tried, I could not persuade him to changing his mind.
1. However hard I tried, I could not persuade him changing his mind.
. No matter how I tried hard, I could not persuade him to changing his mind.
I. Even if how hard I tried, I could not persuade him that he should change his mind.
*. However hard I tried, I could not persuade him to change his mind.