我本来打算今天去公园。
wǒ běnlái dǎsuàn jīntiān qù gōngyuán 。
I originally planned to go to the park today.
他本来应该来，但他生病了。
tā běnlái yīnggāi lái ， dàn tā shēngbìng le 。
He was supposed to come, but he got sick.
本来这是一个简单的问题。
běnlái zhè shì yígè jiǎndān de wèntí 。
Originally, this was a simple question.