কHad the warning been issued earlier, many lives could be saved.
Had the warning been issued earlier, many lives could have been saved.সঠিক উত্তর
গHad the warning been issued earlier, many lives can have been saved.
ঘHad the warning issued earlier, many lives could have been saved.
সঠিক উত্তর: Had the warning been issued earlier, many lives could have been saved.
এটি third conditional (অতীতের অবাস্তব শর্ত): Had+subject+been+pastparticiple, ফলাংশে couldhavebeen+pastparticiple। তাই "Had the warning been issued earlier, many lives could have been saved" সঠিক।