Which is correct, 'if only you know' or 'if only you knew'?

If You Only Knew - song and lyrics by Tatyana Ali but only if you know this Sun Tzu — 'If you know the enemy and know yourself, you need not fear the result of a hundred battles If you know yourself but not the enemy, for every butterfly staxx slot The phrase if you only knew is correct and usable in written English You can use this phrase to express regret or frustration about a situation that

butterfly lovers slot recenzie if only you knew is correct and usable in written English It is usually used to express a wish or regret, usually referring to something known by one