Inspect the quotes in detail:

I. “You should be the change that you want to see in the world.” – Mahatma Gandhi
II. “You may not control all the events that happen to you, but you can decide not to be reduced by them.” – Maya Angelou
III. “I might have been born in a hovel, but I am determined to travel with the greats.” – Tina Turner
IV.“We must accept finite disappointment, but never lose infinite hope.” – Martin Luther King Jr.

The shades of modality can be identified respectively in