+125.+ When you desire to express an action complete at some definite
past time, you do not say:
We finished when they came, _but_, We had finished when they came.
_Not_, They went when we arrived, _but_, They had gone when we
arrived.
_Not_, I worked six months when he began, _but_, I had worked six
months when he began.
Can you see a difference in the meaning expressed in these sentences: _I
worked six months when he began_; and _I had worked six months when he
began_? This last sentence describes an action completed or perfected
before some definite past time.
+126.+ +Past perfect time denotes an action perfected or completed at
some definite past time. It is formed by using _had_ and the past
participle of the verb.+
Remember always, with irregular verbs, to use the _past participle_.
Never use the _past time form_ with _had_.
+Past Perfect Time+
_Singular_ _Plural_
1st. I had seen. We had seen.
2d. You had seen. You had seen.
3d. He had seen. They had seen.