@Gustavo, Co-Moderator posted:
No, "when" is always a conjunction.
No, that is not correct. You could say:
- When walking home, I met Tom. (I strongly prefer "while" in this case)
"when" can introduce abridged adverbial clauses, usually — if not always — when the verb be forms part of the full verb.
- When/While (I was) walking home, I met Tom
When walking home, I met Tom.
What do we call "When" here?
How does it work?