Fantastic question I have yet to meet Fred I have not yet met Fred Mean the same thing, strange but true, but notice the structure. Yet again you have come to work late I manage to get to work on time yet you always arrive late You claim to love me yet you always forget my birthday

Thanks for the question. You can use not, if you wish to. haven't = have not I haven't met the right one yet(person). I haven't told anyone (about it) yet. "Yet" adds more meaning to the sentence. I haven't told anyone yet. (Up to this point in time.) Implied "not" with "yet" in the sentence: They have yet to tell me about it. (At this time, I haven't been told about it.) I have yet to find the man of my dreams. I have yet to meet my future boyfriend. (I haven't met him at this time.) I have yet to win the lottery. (I haven't won it up to this point in time.) Just to summarize, "not" can be implied with yet in the sentence, but you can use "yet" and "not" in the same sentence, too. They haven't done it yet. She has yet to do it. (She hasn't done it.) She hasn't kissed anyone yet. She has yet to kiss anyone.

Yes, your intuition is correct – "I have yet to meet the one" *does* mean "I have not met the one yet". I suppose you could think of this one as similar – similar, but not 100% equivalent in terms of feel, (and even then, it's not necessarily objectively qualifiable, let alone quantifiable!) – to the use of the word “still” as in “You still have to finish your homework, son” – which, if we decided to use the “have yet to” structure, would come out as “You have yet to finish your homework, son”. The sense of “yet” used here is “up until this point…” (sense 1 on the linked online dictionary page). In terms of feel… “still” would seem to me to be more neutral in certain instances, whereas “yet” without a negative… seems to carry a sense of unfulfilled expectation, I think. And very possibly, due to that sense of unfulfilled expectation, there's already a sense of what's lacking that's evident, at least to the speaker. But this is just my native speaker hypothesis, and might well be coloured by the circumstances of my upbringing; other natives may disagree. Sources: https://en.oxforddictionaries.com/definition/yet