Compete the sentence: If they had left earlier, __________.

- প্রদত্ত প্রশ্নের সঠিক উত্তর হচ্ছে - they would have arrived on time.

• Third conditional এর নিয়মানুযায়ী- 
- If-এর পর Past Perfect Tense থাকলে পরবর্তী Sentenceটিতে Past Perfect Conditional, Would have/ could have + verb-এর Past Participle form হয়।
Structure : If + Past Perfect Tense + Past Perfect Conditional
Example:
- If they had left earlier, they would have arrived on time.
- If you had come, I would have gone there.