1,4- maybe or maybe not, possiblity
2,3- might or might not, possiblility
5- correct, would like to (more of a willingless thing)
6- would be able to
9,10- correct, willingness/ability
11-13 If she has time, the last part is correct.
14- this product will break.Something will happen in the future, almost 100% sure of it.
15- this product might break.The possibility of breaking is uncertain.
16- this product may break. Maybe it will break or maybe not.