| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not be present | 29 |
|
| 2 | [vb mod] not be present | 29 |
|
| 3 | may not be present | 9 |
|
| 4 | may not be present | 9 |
|
| 5 | not be present [prep] | 14 |
|
| 6 | not be present [prep] | 14 |
|
| 7 | not be present in | 7 |
|
| 8 | not be present in | 7 |
|
| 9 | not be present at | 5 |
|
| 10 | not be present at | 5 |
|
