ESL learner here, is this correct?

[Hard Toothbrush]

Would these be acceptable answers?

 

[Prophetic Spirit]

Si. I mean, yes.

 

[Elwood P. Dowd]

Correct factually (more often than not) as well as grammatically.

 

[Nick Gars]

You'll fit right in with the rest of the English speaking world, my nigger.

 

[Neodanthril]

@grok do he enlgilsh be good

 

[We Are The Witches]

Si. I mean, yes.

It's Sí, get it right.