Rule 1: Using "Always" → "Never"
1. We should always obey our parents.
We should never disobey our parents.
2. He always helps the poor.
He never neglects the poor.
Rule 2: "As soon as" → "No sooner had"
3. As soon as I opened the door, the cat ran out.
No sooner had I opened the door than the cat ran out.
4. As soon as he saw the police, he fled.
No sooner had he seen the police than he fled.
Rule 3: "All" → "No"
5. All students must work hard.
No student should be lazy.
6. All people love honesty.
No person hates honesty.
Rule 4: "Must" → "Cannot but"
7. We must attend the meeting.
We cannot but attend the meeting.
8. They must help the poor.
They cannot but help the poor.
Rule 5: "And" → "Not only...but also"
9. He is a teacher and a poet.
He is not only a teacher but also a poet.
10. She sang and danced beautifully.
She not only sang but also danced beautifully.
Rule 6: "Only" → "None but / Not more than"
11. Only brave men deserve the award.
None but brave men deserve the award.
12. They are only fifteen.
They are not more than fifteen.
Rule 7: "Sometimes" → "Not always"
13. He sometimes reads poetry.
He does not always read poetry.
14. I sometimes visit my uncle.
I do not always visit my uncle.
Rule 8: "Not a few / Not much / Not a little"
15. There are many trees in the park.
There are not a few trees in the park.
16. I have a few friends.
I do not have many friends.
Rule 9: "For the last time" → "Never"
17. I am watching a movie for the last time.
I will never watch a movie again.
18. I visited Dhaka for the last time.
I have never visited Dhaka since then.
Rule 10: "Forever / For good" → "Never"
19. I have given up smoking forever.
I will never smoke again.
20. They sold their car for good.
They will never buy their car again.
Rule 11: Auxiliary verb + Adjective → Antonym
21. He is happy.
He is not unhappy.
22. She is wise.
She is not foolish.
Rule 12: "There is no...but" → "Every"
23. There is nobody but respects the teacher.
Everybody respects the teacher.
24. There is nobody but loves honesty.
Everybody loves honesty.
Rule 13: "Everybody" → "Nobody"
25. Everybody is kind.
Nobody is unkind.
26. Everybody is honest.
Nobody is dishonest.
Rule 14: Superlative → Negative Positive Degree
27. He is the best student in the class.
No other student in the class is as good as he is.
28. This is the most beautiful park.
No other park is as beautiful as this one.
Rule 15: Comparative → Negative Positive Degree
29. He is better than any other boy.
No other boy is as good as he is.
30. Dhaka is bigger than any other city in Bangladesh.
No other city in Bangladesh is as big as Dhaka.
Rule 16: Antonym of Adjective
31. He is rich.
He is not poor.
32. The room is tidy.
The room is not untidy.
Rule 17: "There is no...but" replaces "Every"
33. Every student loves his teacher.
There is no student but loves his teacher.
34. Every mother loves her child.
There is no mother but loves her child.
Rule 18: "No / There is no...who" replaces "Every"
35. Every man must die.
No man can escape death.
36. Everyone loves him.
No one hates him.
Rule 19: Antonym of Adverb
37. He acted foolishly.
He did not act wisely.
38. They smiled confidently.
They did not smile half-heartedly.
Rule 20: "Too...to" → "So...that + cannot"
39. He is too weak to walk.
He is so weak that he cannot walk.
40. The box is too heavy to lift.
The box is so heavy that it cannot be lifted.