I made some sentences in English.
Are they correct?🤔
☀️If exercise is to stay healthy, I will run every day.
☀️I need to exercise regularly in order to stay healthy.
☀️I need to exercise regularly so as to stay healthy.
☀️If my English skills is to improve, I will keep studying.
☀️I study hard in order to improve my English skills.
☀️I study hard so as to improve my English skills.