4. Complete the missing parts with the correct verb form.

Here are the completed sentences: * If he knew how to help her, he would do it. * She'll have more energy if she gets up earlier. * We'd visit the new museum in our city if we weren't that busy. * If I won a big sum of money, I would spend it on real estate. * You'll feel way better if you work out consistently. * If he hadn't watched the film, he wouldn't be scared at night. * What would you do if you saw an accident? * He will go to the party if he arrives early enough.