The simple past tense is 'visited'.
visited
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.
Had is the past of have. A past simple sentence:I had a headache this morning
There is only one form of the simple past--the simple past.
The simple past tense of have is had.
Both the simple past and the past participle are ground.
past part walked, simple past walk
What is your question?Are you asking what is the simple past tense of "pay"?Paid is the simple past tense of pay, as there is no simple past tense of of paid. Paid is already past tense.