It depends on how they dismissed the request you made or the question you asked? Intonation is very important.
1) Depending on their voice when they "dismissed the request", would determine how I would answer.
2) If I felt it was because they were obviously annoyed, I would say, "Sorry to have bothered you".
3) If I was surprised at their response, and not sure as to why, I would have said, "Sorry if I have bothered you".
(https://forum.wordreference.com/threads/sorry-to-have-bothered-you-sorry-if-i-bothered-you.913320/)
Q1) Are they all (1,2 and 3) second conditionals? (1) is a bit hard to understand.
Q2) Sentences (2) and (3) look almost the same, then why did the writer used "I would have said" instead of "I would say" in (3)?
Rizan Malik Q1) Are they all (1,2 and 3) second conditionals? (1) is a bit hard to understand. (1) is malformed.
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Rizan MalikQ1) Are they all (1,2 and 3) second conditionals? (1) is a bit hard to understand.
(1) is malformed. The correction is
Their tone of voice when they "dismissed the request" would determine how I would answer.
There is no if-clause, so it's not a conditional. 'would' is just there to indicate the thought is hypothetical