if I knew the answer
If I knew the answer, I would tell you right away.
—Why don't you answer? —If I knew the answer, I would.
If I knew the correct answer, I wouldn't have doubts.
If I knew the answer, I would tell you right away.
—Why don't you answer? —If I knew the answer, I would.
If I knew the correct answer, I wouldn't have doubts.