Question

1. Degas painted in his studio, and he was based on the sketches.

2. Degas painted in his studio, and he was based on the sketches.

3. Degas painted in his studio, and his paintings were based on the sketches.

4. Degas painted in his studio, his paintings being based on the sketches.

5. Degas painted in his studio, with his paintings based on the sketches.

(I have written down other expressions. Are they all grammatical? Especially, what about #1? Is it grammatical? If not why is that?)

Answer 1

1 and 2 are incorrect.

3, 4, and 5 are fine.