translation of - আমি যখন ছেলেটিকে দেখলাম, তখন সে কয়েক ঘন্টা ধরে কাঁদছিল
When I saw the boy, he was crying for several hours.
When I had met the boy, he had been crying for several hours.
When I met the boy, he had been crying for several hours.
When I met the boy, he has been crying for several hours.