Completar frases Final testVersión en línea Use the correct modals por Betty Villacob 1 As we get older and when we think about our past we sometimes ponder the things that we ( should / can ) have done . And we also ( may / shall ) regret those things we did badly and the mistakes we made . In reality , we ( be able to / can ) always learn from our mistakes and hope to never make them again . For example , if I failed a test because of a lack of study , the next test I ( will / must ) hope to pass because of hard work . Remember too that some regrets are not based in reality and we ( must / may ) waste time thinking that they are . ( Would / should ) I have really not have been involved in a car crash if I had been driving more slowly ? After all , the other driver ( ought to / will ) have been concentrating and not playing with their radio . We ( have to / would be ) honest with ourselves and live in the now . The only things we ( used to / can ) control are the things happening now , in this moment .