- Siblings are an important part of our lives and I believe supporting, cheering, directing and motivating them is/are also important.
- Booking, canceling and rebooking flights does/do not take much time.
Should I use is/does or are/do in these sentences? According to me, we can use either of them. If we are taking all these things as a single step/task then we should use is/does, but if we are taking these things as separate tasks/steps then we should use are/do. Are my interpretations correct? What should we actually use in such cases?