Complete the sentences, putting the verbs into the correct form. 1. Of course it would be better if you ________ (to be) there too. 2. I will never finish my story if you_________ (to keep) on interrupting me. 3. If we start now, we________ (to catch) the evening train. 4. If the teenager_________ (to collect) his thoughts, he would have won the competition. 5. If she finished her research, she_________ (to take part) in the conference. 6. If I_________ (