Last week my friend received some legal documents and he need to sign it and send it back. But he was not accept those terms and conditions mentioned in that. so he could not sign that.
Now he want to explain this in a document as "I could not give the signed documents because the statements mentioned in that is not acceptable for me".
Is
'I couldn't '
correct ? I felt it is OK for verbal communication but for some legal writings we have to show our strong opposition, we need a bold or strong word.