Question

1. When I play soccer, I am excited.
2. When I sad, I listen to music.
3. When I play the piano, I am happy.

4. While I play soccer, I am excited.
5. While I sad, I listen to music.
6. While I play the piano, I am happy.
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Are they all grammatical?
Can we use both 'when' and 'while' in this case? What is the difference between 'when' and'while'?

Answer 1

Numbers 2 and 5 are incorrect. The others are correct.

"sad" is an adjective. In these sentences, a predicate is needed. "I am sad", a predicate adjective. "I sad" has no predicate, so is incorrect.

Answer 2

1. When I play soccer, I am excited.
2. When I am sad, I listen to music.
3. When I play the piano, I am happy.

4. While I play soccer, I am excited.
5. While I am sad, I listen to music.
6. While I play the piano, I am happy.
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I corrected the two sentences, and then are all grammatical?

Answer 3

Yes, now all are fine.