Non-Invertible

·return sth(to sb.)

·prepare sth.(for n .p.)

·inform sb.(about/of sth.)

·talk to sb.(about sth)

·tell sb.(about sth.)

·agree with sb.(about/on sth.)

不可倒置

把某物还给某人

准备东西做...

通知某人某事

和某人谈论某事

告诉某人某事

对于某事同意某人

Invertible

·tell sb sth.

·tell sth to sb

·talk about sth. with sb

·talk to sb about sth

可倒置

告诉某人某事

告诉某人某事

和某人谈论某事

和某人谈论某事