Come out of underneath the table.

[tufguy]

1) Come out of underneath the table.

2) Come out from underneath the table.

Please check my sentences.

 

[tedmc]

They are not sentences. But the second is correct as a phrase. "From under the table" is also common.

 

[tedmc]

Why do you say that?

Okay, they can be imperatives.

 

[emsr2d2]

The second is a perfectly grammatical imperative. "of" doesn't work there. Note that most BrE speakers would use "under" rather than "underneath" there.