Students get practice adding -ed and -ing to verbs in this worksheet. This freebie is part of a bigger past and present tense packet. If interested, you can find it in my story titled: Past and Present Tense - Adding Suffixes -ed and -ing to Verbs
For ESL verb tense is a real issue, so focusing on verbs is very important. Talk about the difference between past and present verbs. Visit this website and take a look at examples of verb tense sorts.