Fill in the blank with correct option: ___________ I would have gone to the station.

Structure of conditional sentence:
• Zero Conditional = If + Present + Present (shows scientific and general truth)
• 1st Conditional = If + Present + Future
• 2nd Conditional = If + Past Simple + Future in Past (S + would/might/could + Base Form of the Verb)
• 3rd Conditional = If + Past Perfect (had +V3) + Perfect Modal (S + would have/could have/might have + V3)

Sentence টি Perfect conditional/ 3rd conditional.
পরের অংশে যেহেতু would have gone দেয়া আছে তাই আগের অংশে If clause- এ had + V₃ হবে।
অর্থাৎ, প্রথম অংশে - If I had known you were coming বসবে।