Simple Past Tense Do. The simple past tense sometimes called the preterite is used to talk about a completed action in a time before now. He she it had been doing.
For irregular verbs things get more complicated. Done do ed past participle yo be used in perfective aspect after has have had or in passive form of the sentence do did is past form of the given verb do. I had been doing.
You had been doing.
We had been doing. Done do ed past participle yo be used in perfective aspect after has have had or in passive form of the sentence do did is past form of the given verb do. The past participle of do is. The past tense of do is did.