I need to check up on a few things before I can decide.

我得核实几件事情才能作决定。

《牛津词典》

These are books I need to check out today.

这些是我今天要借的书。

youdao

I need to check my e-mails and send some.

我需要看一下我的电子邮件以及发送几封电子邮件。

youdao

"When she said that, I thought, 'Wow, maybe I need to check myself, '" Ms. Avant says.

WSJ: Why More Young Kids Cheat at School

As I say, I need to check the details, but that is how it looks.

BBC: The Bank, the OBR and Mr Osborne

"It's something I need to check on, " he said.

WSJ: Flooded Atlantic City Feels the Early Brunt