I'm not a teacher and I'm not an expert, but here are my thoughts.
First of all, do you really mean phrases or do you mean sentences? I'm asking because you used capitalization and periods.
If you mean phrases, then they're correct in my opinion no matter what you mean by "correct".
If you mean sentences, then I think it depends on what you mean by "correct". If you mean syntactic correctness, then yes, they're correct. If you mean, "Is there any context in which this sentence could be used", then I'm not sure -- I don't see such contexts but it surely doesn't mean they don't exist.