English grammar questions

[Guyper]

A. Maybe I should check my e-mail again
B. How often should I check on my investments?

Hi, I was wondering if there's a difference between "to check" and "to check on" or are they interchangeable?

Thank you

[Raven_Matuskui]

Dear God....

You really don't need on, its assumed that when you check. You can say it to sound more professional or responsible:

"I need to check on the baby."

But it works and is understood the same way when you say it like this:

"I need to check the baby."

They made me a Zeta.....

[e r i s e d y m]

Where are you from? ..If you don't mind me asking.

Your english is already really good, why are you always asking grammar questions?

~Just really curious~