J.J. English' Overview with examples:
For the verb, "to be," use was or were.
was for 1 I was we were
were for 2+ = you were you were
always were for you he,she,it was they were
Practice was vs. were
For regular verbs, add _ed to show past in a positive sentence. They listened to me.
Use Did and the base form to show past in a question. Did you listen to me?
Use didn't and the base form to show past in a negative sentence. He didn't listen to me.
English Page Explanation
Children's Video: Great pronunciation of What did you do? uses childish imagery.
Real English -- What did you do yesterday?
ELF Past Chant 1
ELF Past Chant 2
ELF Past Chant 3
Since this next video -- with tons of clear examples of past tense -- is long, you may want to start at minute 1:50. I really want my students to make similar videos.
Just a song with some past tense verbs -- "Summer Nights" from Grease