| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | need not have [verb] | 123 |
|
| 2 | need not have [vb pp] | 122 |
|
| 3 | need n't have [verb] | 65 |
|
| 4 | need not have [verb] | 58 |
|
| 5 | need not have worried | 48 |
|
| 6 | need not have worry | 48 |
|
| 7 | need not have bothered | 18 |
|
| 8 | need not have bother | 18 |
|
| 9 | need not have done | 6 |
|
| 10 | need not have do | 6 |
|
