Question

the pain is so terrible that I cannot bear it any longer (re write using to)​

Answer 1

The pain is too terrible to bear.

or

The pain is too terrible to be born.

Explanation

'Too+adjective+to' structure is used to mean the negative sense of the given sentence. For example the meaning of the sentence 'You are too clever to be cheated.' is 'You are so clever that no one can cheat you.'

Answer 2

The pain is too terrible to bear

Hope it helps you mate ❤️