1. He may be a doctor, but he is awkward.
2. Even though he has a doctor's license, he is not a good doctor.
3. He may be clever, but he's not very helpful.
4. Although he is clever, he' not very helpful.
It is not very clear to me in which sense "awkward" is meant. Otherwise, these sentences are all OK, apart from a small typo in (4).
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It is not very clear to me in which sense "awkward" is meant. Otherwise, these sentences are all OK, apart from a small typo in (4).