It's adj to sb什么用法?

It's adj to sb什么用法? It adj.for sb.to sth.与It's adj.for sb.to sth.有什么区别 it‘s+adj+to do 和it+adj+to do sth 有什么用法 it's+adj.+of +sb.it's +adj.+for sb.这两句的用法 it's+adj.+for sb.to do sth.若for改为to用法! It's+adj+for/of+to+sb的用法,如果放enough上去,如何放? It's + adj.+ for sb.+ to do( sth.) 与 It's + adj.+ of sb.+ to It's adj to sb和It's adj for sb it's adj for sb.还是 it's adj to sb. It's +adj of sb to do sth 和 It's for sb to do sth有什么区别? It's+adj.+for sb.和It's+adj.+of sb.有什么区别? sb think it adj for sb to do sth与sb think it's adj for sb to