Here is a simple lifeline to show 3 important junctures that will be used to compose mixed conditional sentences. Teaching mixed conditionals isn't such a difficult concept to teach but finding an activity that is practical and reflects our lives might be. This will require close teacher guidance to ensure that the students are actually combining different conditionals. The most common mistake I've found with this activity is conditional sentences that are normal and do not reflect a mixture of time. Good luck and have fun!!