| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] be required [to-vb] | 48 |
|
| 2 | not be require [to-vb] | 46 |
|
| 3 | [not/n't] be require to give | 6 |
|
| 4 | [not/n't] be require to pay | 5 |
|
