Explanation

• We lost confidence in Amjad delivered on the grandiose promises he had made.
• ہم نے امجد کے ان شاندار وعدوں پر اعتماد کھو دیا جو اس نے کیے تھے۔
• ***
• delivered on: to do what is required by (a promise or pledge)
• "Delivered on" is best to keep the meaning of the original sentence
• ***
• This is the past sentences we use the second foam of the verb
• Infinitive Past Simple Present Participle
• Deliver          Delivered           Delivering