Quote Originally Posted by kwatts59

I think "I saw the man who is with the girl" is grammatically incorrect since it mixes tenses.
It is perfectly correct. Not only that but this is the intended target sentence to be translated here. He had obviously, previously seen the man, who now he sees again with a girl. He is specifically referring to THIS man and not another man who may be present or in the speakers view because the other man is not with a girl.

So somebody please translate this for the poster so we can put an end to this redickulousness. Hmm?