Probhakar
I COULDN'T SAY FOR CERTAIN

What is the meaning of the sentence " I couldn't say for certain."

Does it mean I couldn't say for certain reasons?

2016년 12월 18일 오전 5:19
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The meaning is, I couldn't say with certainty. As in, I couldn't say something is true, without having doubt, because I don't know whether it's true or not.
2016년 12월 18일
1
Oh thanks, I got that in completely wrong way 
2016년 12월 18일