Verb conjugation of "interpolate" in English

If I see that the case study does not progress as I wish, I will summarize the data myself and let the University sign it. Of course, you will receive the study immediately. All the best meanwhile.
I am a computer scientist and I also have a small restaurant with my younger sister (she is also already 53). You can come and visit, I will buy you a drink and we could chat a little.
Sure! I can help you in learning German. What do you need? I am a student for literature and live in Hanover. Do you know the city? It is in the north. Are you studying or are you working?