Where we used to have to Share with your friends Share 1 Roshini Anie Thomas answered this 'Have to' is often used to show obligation. When we use 'have to', we do not compel the person but remind the person about his duty. For example, you have to study well. You have to be careful while using a knife. 0 View Full Answer Tushar Insta Thatstushar answered this To.....what 1 Aswathy answered this Have topls complete the question 0