Past Perfect Tense is used to explain two types of stories or talking that happens or completed in the past. It is usually used to explain those things or actions that happens in past long time ago. It gives a beauty in talking to explain such types of activities from past.
e.g. He had send me his picture two years ago.
It is also used for those activities that recently happened in past, but it is a way to convey a sense to ending a talk or action with reference to other activities taken place after the same action.
e.g. The student was gone before the teacher came.
Structure of Sentence:
Main verb: Past Participle (3rd form of the verb) e.g. gone, written, etc
Auxiliary verbs: Had
Subject + Auxiliary verb + Main verb + Object
Subject + Had + Past Participle (3rd form of verb) + Object
She had undergone heart surgery in her childhood. (use ‘gone’ 3rd from)
I had lost my camera. (use ‘lost’ 3rd from)
She had cooked some food. (use ‘cooked’ 3rd from)
He had consumed a lot of alcohol. (use ‘consumed’ 3rd from)
They had shifted to a new home. (use ‘shifted’ 3rd from)
He had earned a lot of money. (use ‘earned’ 3rd from)
She had appeared in the exam. (use ‘appeared’ 3rd from)
He had lent me his book. (use ‘lent’ 3rd from)
They had bought a new car. (use ‘bought’ 3rd from)
You had gone before I reached.(use ‘gone’ 3rd from)
The student had gone before the teacher came. (use ‘gone’ 3rd from)
Subject + Auxiliary verb + NOT + Main verb + Object
Subject + Had + Not + Past Participle + Object
He had not informed me about his illness.
He had not finished his work.
She had not applied for some job.
They had not cleaned their room.
I had not visited him.
She had not bought new dresses for the wedding party.
You had not helped him when he needed youy help.
He had not met me when I was in the college.
We had not finished our work when he came here.
I had not told him the truth when he asked me.
Auxiliary verb + Subject + Main verb + Object
Had + Subject + Past Participle + Object
Had you completed your task?
Had he prepared himself for the exam?
Had she prepared some food for the kids?
Had I thought about my future?
Has he appeared in the exam?
Has she waited for you?
Had you bought a calculator before you attempted exam of mathematics?
Had you taken medicine when you were ill?
Had she watered the plant before it dried?
Had they quit smoking when doctor advised them?