tā / zǒng / huái yí / bié rén / zài / bèi hòu / shuō / tā / huài huà / zhēn shì / yí xīn shēng àn guǐ

他总怀疑别人在背后说他坏话，真是疑心生暗鬼。

He always suspects others are talking behind his back—truly, suspicions create imaginary fears.