A sentence is called past simple when it has only one verb in the past tense
The dog ran down the street. ran is the only verb in the sentence and it is the past form (of run).
We usually use Past Simple to talk about something that happened at a definite time in the past and is now finished.
I met him in 2003. -- (met is the past form of meet)
The past simple of "have" is "had."
The simple past is had.
Past simple and simple past are both the same thing. They are both the past tense of a verb.
The simple past tense is climbed.
The simple past and past participle are both 'had'.
The simple past and past participle are both brought.
The simple past tense is studied.
"Listened" is the past simple of "listen" as well as the past participle.
Had is the past of have. A past simple sentence:I had a headache this morning
The simple past tense of say is said.
The simple past tense of speak is spoke.
The simple past is rang.