| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [verb] to be | 2775 |
|
| 2 | not [vb pp] to be | 513 |
|
| 3 | not require to be | 20 |
|
| 4 | [adv] required to be | 20 |
|
| 5 | not required to be | 7 |
|
| 6 | not required to be | 7 |
|
| 7 | not required [prep] be | 7 |
|
| 8 | not required to be | 7 |
|
| 9 | not required [prep] be | 7 |
|
| 10 | not required to [be] | 7 |
|
| 11 | [not/n't] required to be | 7 |
|
| 12 | not required to [be] | 7 |
|
