Please answer if the group of words is a phrase or a clause
1. while attending class
2. unless a release form is signed
3. after completing the form
4. after he was covered with additional blanket
5. when you know the test result
6. because the patient would be more comfortable.
7. when dealing with patients
8. when planning patient education
9. after completing patient education
10. although vital signs were stable



It is a clause, because there is an idea that explains the statement