The simple past tense is delayed.
The past tense form of the verb 'delay' is 'delayed'.
The past tense of "delay" is "delayed."
The past participle is delayed.
I, he, she, it was delaying. You, we were delaying.
The simple past is had.
The past simple of "have" 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.