How do you change I went to the pool and swim ten lengths then jump in from diving board all sentences into past tense can show me how rewrite this sentence tense?

To change the sentence "I went to the pool and swam ten lengths then jumped in from the diving board" into past tense, you would change the verbs "went", "swam", and "jumped" to their past tense forms: "went" becomes "went", "swam" becomes "swum", and "jumped" becomes "jumped". The corrected sentence in past tense would be:

"I went to the pool and swam ten lengths, then jumped in from the diving board."