First, explain to your kids what present tense and past tense verbs are. Give them simple examples of verbs they are familiar with, and explain how a past tense shows that the action was performed in the past. What would happen if your kids added the letters ‘–ing’ to the end of the word ‘jump’? Would it stay in the simple present form, or change to an action that happened in the past? Help them draw a line in this worksheet to the correct answer.