"I'm not sure whether I did enough when I came on in the second half, " Delve told BBC Sport Wales.
Mr Melding said: "I'm not sure whether I am in shock or awe".
And I think several -- I'm not sure whether it was Sarkozy or Merkel or Barroso or somebody, they joked with me that I'd gotten a crash course in European politics over the last several days.
WHITEHOUSE: President Obama��s Press Conference on the G20 Summit
Mr. NAJI: I'm not sure whether he's actually seeking confrontation.
We also know that Saddam Hussein had ballistic missiles with a range longer than the UN had permitted but Blix got, I'm not sure whether it's sixty four or seventy of those destroyed.
"I'm not sure whether the technology they've got there is good enough as far as frames per second, " said Greatbatch after an inconclusive replay saw the umpires again rule in the tourists' favour.
I'm not too sure whether the market will be willing to lend more to Indonesia at the moment.
"It would be nice if you could do that but I'm not sure it would work - it depends whether it is a simple mechanical component or something more complex, " Prof Pillinger, who now works at the Planetary and Space Sciences department at the Open University, told BBC News.
Would she recognise her role in delivering devolution - whether potent player or campaigning tool? i'm not sure.
"Whether disclosure laws should be updated, I'm really not sure, " he says.
England seem happy to build a rotating squad of bowlers but whether it's the right thing or not I'm not so sure.
Whether he can count on them under these circumstances, I'm not sure.
Whether that's to save money or a genuine policy I'm not sure.
Hyzy: I'm not so sure that "too big to fail" is ever going to be gone, whether you're talking about banks, financials or any other sector.
But I'm not sure that we have sufficient credible intelligence that we are comfortable in relying on, right now, as to whether or not it's true.
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