Сделать предложение отрицательным и спросить все виды вопросов к этому предложению sometimes companies realize that they are not achieving their goals or objectives effectively

Sometimes companies don't realize that they are not achieving their goals or objectives effectively. (отрицательное)
1. Do  companies sometimes realize that they are not achieving their goals or objectives effectively?
2. What do companies sometimes realize?
3. Sometimes companies realize that they are not achieving their goals or objectives effectively, don't they??
4. Do  companies sometimes realize that they are not achieving their goals or objectives effectively or do they often realize that?