Example 1
Dylan grew four inches between his senior year of high school and his freshman year of college.
Aww, shucks. They grow up so fast. And in this case, grew is the past tense of the irregular verb grow.
Example 2
It's safe to say that when Emily moved to Antarctica, her dodgeball team lost their best player.
Here, lost is the irregular past tense of the verb lose. The largest game of dodgeball ever played took place at the University of California-Irvine: 6,084 people and zero penguins participated.
Example 3
As soon as Charlie broke out the karaoke machine, everybody left the party.
This tone-deaf sentence features two irregular verbs: broke, which is the past tense of break, and left, which is the past tense of leave.