Don't play with the animals that you don't know how to react to your behavior.

[capcap23]

I have seen the structure in '1/' used in relative clauses with noun clauses. I wonder whether the other examples are correct in grammar-wise.

1/ Don't play with the animals that you don't know how to react to your behavior.
2/ Don't play with the animals that you don't know how will react to your behavior.
3/ Don't play with the animals that you don't know how it will react to your behavior.

 

[5jj]

None of the three is correct.

 

[5jj]

I have seen the structure in '1/' used in relative clauses with noun clauses.

Can you post an example?

 

[capcap23]

Can you post an example?

"we were talking about why it's never good idea to let your guard down around an alien form of life that you have no idea how react to your poking and prodding"
source

 

[tedmc]

"we were talking about why it's never good idea to let your guard down around an alien form of life that you have no idea how react to your poking and prodding"
source

I think you have missed two words from the sentence.

 

[Tarheel]

"we were talking about why it's never good idea to let your guard down around an alien form of life that you have no idea how react to your poking and prodding"
source

You didn't transcribe it accurately. It's "if you have no idea how it's going to react to your poking and prodding".