1. Add "- ing" to the following verbs:
1. drink 4. play 7. travel 2. make 5. lie 8. cook 3. swim 6. cut 9. come

2. Put the verbs in brackets into the correct form.
a. He usually (to play) tennis in the afternoon b. I (to write) a letter now. C. Mary ( not to have) dinner at the moment. d. We (to cook) pizza once a week. e. Father ( to lie) on the sofa now. F. The children ( not to watch) TV at the moment.