| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which may [adv] be [prep] | 12 |
|
| 2 | which may [not/n't] be [prep] | 6 |
|
| 3 | which may not be [prep] | 6 |
|
| 4 | which may [adv] be [prep] | 6 |
|
| 5 | which may not be [prep] | 6 |
|
