1a entails 1b
1a) Amy managed to leave on time.
1b) Amy left on time.
2a presupposes 2b
2a) Tim regrets he kissed Jill.
2b) Tim kissed Jill.
The trigger is regrets.
3a presupposes 3b
3a) Tom managed to give up drinking.
3b) Tom tried to give up drinking.
The trigger is managed.


