| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [modal v] not be available [prep] | 6 |
|
| 2 | which [vb mod] [not/n't] be available [prep] | 6 |
|
| 3 | which [modal v] [not/n't] be available [prep] | 6 |
|
